1. Patent Search
  2. Details

GREEN-EMITTING PHOSPHORS AND DEVICES THEREOF

20190088827 ยท 2019-03-21

    Inventors

    Cpc classification

    International classification

    Abstract

    A device including an LED light source optically coupled to a green-emitting U.sup.6+-doped phosphor having a composition selected from the group consisting of U.sup.6+-doped phosphate-vanadate phosphors, U.sup.6+-doped halide phosphors, U.sup.6+-doped oxyhalide phosphors, U.sup.6+-doped silicate-germanate phosphors, U.sup.6+-doped alkali earth oxide phosphors, and combinations thereof, is presented. The U.sup.6+-doped phosphate-vanadate phosphors are selected from the group consisting of compositions of formulas (A1)-(A12). The U.sup.6+-doped halide phosphors are selected from the group consisting of compositions for formulas (B1)-(B3). The U.sup.6+-doped oxyhalide phosphors are selected from the group consisting of compositions of formulas (C1)-(C5). The U.sup.6+-doped silicate-germanate phosphors are selected from the group consisting of compositions of formulas (D1)-(D11). The U.sup.6+-doped alkali earth oxide phosphors are selected from the group consisting of formulas (E1)-(E11).

    Claims

    1. A device comprising an LED light source optically coupled to a green-emitting U.sup.6+-doped phosphor selected from the group consisting of U.sup.6+-doped phosphate-vanadate phosphors, U.sup.6+-doped halide phosphors, U.sup.6+-doped oxyhalide phosphors, U.sup.6+-doped silicate-germanate phosphors, U.sup.6+-doped alkali earth oxide phosphors, and combinations thereof; wherein, the U.sup.6+-doped phosphate-vanadate phosphors are selected from the group consisting of: (A1) [Ba, Sr, Ca, Mg][B, Al, Ga, In][P, V]O.sub.5: U.sup.6+; (A2) Ba.sub.2?x [Sr, Ca, Mg].sub.x[P.sub.1?y, V.sub.y].sub.2O.sub.7: U.sup.6+; wherein 0?x?2, 0?y?1, and x?0 when y=0; (A3) [Ba, Sr, Ca, Mg].sub.4[P, V].sub.2O.sub.9: U.sup.6+; (A4) [Ba, Sr, Ca, Mg].sub.3[P, V].sub.4O.sub.13: U.sup.6+; (A5) [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In][P, V]O.sub.8: U.sup.6+; (A6) [Ba, Sr, Ca, Mg].sub.6[B, Al, Ga, In].sub.5[P, V].sub.5O.sub.26: U.sup.6+; (A7) Ba.sub.3?x[Sr, Ca, Mg].sub.x[P.sub.1?y, V.sub.y].sub.2O.sub.8: U.sup.6+; wherein 0?x?3, 0?y?1, and x?0 when y=0; (A8) A.sub.2[Ba, Sr, Ca, Mg][P, V].sub.2O.sub.7: U.sup.6+; (A9) A[Ba, Sr, Ca, Mg][P, V]O.sub.4: U.sup.6+; (A10) [Ba, Sr, Ca, Mg][P, V].sub.2O.sub.6: U.sup.6+; (A11) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In][P, V]O.sub.7: U.sup.6+; and (A12) [Ba, Sr, Ca, Mg].sub.10[P, V].sub.6O.sub.25: U.sup.6+. the U.sup.6+-doped halide phosphors are selected from the group consisting of: (B1) [Ba, Sr, Ca, Mg]X.sub.2: U.sup.6+; (B2) A[Ba, Sr, Ca, Mg]X.sub.3: U.sup.6+; and (B3) [Ba, Sr, Ca, Mg].sub.2X.sub.4: U.sup.6+; the U.sup.6+-doped oxyhalide phosphors are selected from the group consisting of: (C1) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In]O.sub.3X: U.sup.6+; (C2) [Ba, Sr, Ca, Mg].sub.2[P, V]O.sub.4X: U.sup.6+; (C3) Ba.sub.5?n [Sr, Ca, Mg].sub.n[P.sub.1?m, V.sub.m].sub.3O.sub.12X: U.sup.6+; wherein 0?n?5, 0?m?1, and n?0 when m=0 and X?F; (C4) [Ba, Sr, Ca, Mg].sub.5[B, Al, Ga, In].sub.3O.sub.9X: U.sup.6+; and (C5) [Ba, Sr, Ca, Mg].sub.3[Si, Ge]O.sub.4X: U.sup.6+; the U.sup.6+-doped silicate-germanate phosphors are selected from the group consisting of: (D1) [Ba, Sr, Ca, Mg].sub.2[Si, Ge]O.sub.4: U.sup.6+; (D2) [Ba, Sr, Ca, Mg].sub.3[Si, Ge]O.sub.5: U.sup.6+; (D3) [Ba, Sr, Ca, Mg].sub.3[Si, Ge].sub.2O.sub.7: U.sup.6+; (D4) [Ba, Sr, Ca, Mg][Si, Ge]O.sub.3: U.sup.6+; (D5) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.2[Si, Ge].sub.2O.sub.8: U.sup.6+; (D6) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In].sub.2[Si, Ge]O.sub.7: U.sup.6+; (D7) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.6[Si, Ge].sub.2O.sub.16: U.sup.6+; (D8) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.2[Si, Ge]O.sub.8: U.sup.6+; (D9) [Ba, Sr, Ca, Mg].sub.11[B, Al, Ga, In].sub.2[Si, Ge].sub.4O.sub.22: U.sup.6+; (D10) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.10[Si, Ge]O.sub.20: U.sup.6+; and (D11) [Ba, Sr, Ca, Mg].sub.65[B, Al, Ga, In].sub.11[Si, Ge].sub.5O.sub.33: U.sup.6+; and the U.sup.6+-doped alkali earth oxide phosphors are selected from the group consisting of: (E1) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.4O.sub.7: U.sup.6+; (E2) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.2O.sub.6: U.sup.6+; (E3) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.6O.sub.10: U.sup.6+; (E4) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.2O.sub.4: U.sup.6+; (E5) [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In].sub.2O.sub.7: U.sup.6+; (E6) [Ba, Sr, Ca, Mg].sub.12[B, Al, Ga, In].sub.14O.sub.33U.sup.6+; (E7) A[Ba, Sr, Ca, Mg][B, Al, Ga, In]O.sub.3: U.sup.6+; (E8) [Ba, Sr, Ca, Mg]O: U.sup.6+; (E9) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In, Sc].sub.2O.sub.5: U.sup.6+; (E10) A[Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In].sub.5O.sub.10: U.sup.6+; and (E11) A[Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In].sub.3O.sub.9: U.sup.6+; wherein, A is Li, Na, K, Rb, Cs, or a combination thereof X is F, Cl, Br or a combination thereof.

    2. A device according to claim 1, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped phosphate-vanadate phosphor selected from the group consisting of: (A1) [Ba, Sr, Ca, Mg][B, Al, Ga, In][P, V]O.sub.5: U.sup.6+; (A2) Ba.sub.2?x [Sr, Ca, Mg].sub.x[P.sub.1?y, V.sub.y].sub.2O.sub.7: U.sup.6+; wherein 0?2, 0?y?1, and x?0 when y=0; (A3) [Ba, Sr, Ca, Mg].sub.4[P, V].sub.2O.sub.9: U.sup.6+; (A4) [Ba, Sr, Ca, Mg].sub.3[P, V].sub.4O.sub.13: U.sup.6+; (A5) [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In][P, V]O.sub.8: U.sup.6+; (A6) [Ba, Sr, Ca, Mg].sub.6[B, Al, Ga, In].sub.5[P, V].sub.5O.sub.26: U.sup.6+; (A7) Ba.sub.3?x [Sr, Ca, Mg].sub.x[P.sub.1?y, V.sub.y].sub.2O.sub.8: U.sup.6+; wherein 0?x?3, 0?y?1, and x?0 when y=0; (A8) A.sub.2[Ba, Sr, Ca, Mg][P, V].sub.2O.sub.7: U.sup.6+; (A9) A[Ba, Sr, Ca, Mg][P, V]O.sub.4: U.sup.6+; (A10) [Ba, Sr, Ca, Mg][P, V].sub.2O.sub.6: U.sup.6+; (A11) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In][P, V]O.sub.7: U.sup.6+; and (A12) [Ba, Sr, Ca, Mg].sub.10[P, V].sub.6O.sub.25: U.sup.6+.

    3. A device according to claim 1, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped halide phosphor selected from the group consisting of: (B1) [Ba, Sr, Ca, Mg]X.sub.2: U.sup.6+; (B2) A[Ba, Sr, Ca, Mg]X.sub.3: U.sup.6+; and (B3) [Ba, Sr, Ca, Mg].sub.2X.sub.4: U.sup.6+.

    4. A device according to claim 1, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped oxyhalide phosphor selected from the group consisting of: (C1) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In]O.sub.3X: U.sup.6+; (C2) [Ba, Sr, Ca, Mg].sub.2[P, V]O.sub.4X: U.sup.6+; (C3) Ba.sub.5?n[Sr, Ca, Mg].sub.n[P.sub.1?m, V.sub.m].sub.3O.sub.12X: U.sup.6+; wherein 0?n?5, 0?m?1, and n?0 when m=0 and X?F; (C4) [Ba, Sr, Ca, Mg].sub.5[B, Al, Ga, In].sub.3O.sub.9X: U.sup.6+; and (C5) [Ba, Sr, Ca, Mg].sub.3[Si, Ge]O.sub.4X: U.sup.6+.

    5. A device according to claim 1, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped silicate-germanate phosphor selected from the group consisting of: (D1) [Ba, Sr, Ca, Mg].sub.2[Si, Ge]O.sub.4: U.sup.6+; (D2) [Ba, Sr, Ca, Mg].sub.3[Si, Ge]O.sub.5: U.sup.6+; (D3) [Ba, Sr, Ca, Mg].sub.3[Si, Ge].sub.2O.sub.7: U.sup.6+; (D4) [Ba, Sr, Ca, Mg][Si, Ge]O.sub.3: U.sup.6+; (D5) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.2[Si, Ge].sub.2O.sub.8: U.sup.6+; (D6) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In].sub.2[Si, Ge]O.sub.7: U.sup.6+; (D7) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.6[Si, Ge].sub.2O.sub.16: U.sup.6+; (D8) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.2[Si, Ge]O.sub.8: U.sup.6+; (D9) [Ba, Sr, Ca, Mg].sub.11[B, Al, Ga, In].sub.2[Si, Ge].sub.4O.sub.22: U.sup.6+; (D10) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.10[Si, Ge]O.sub.20: U.sup.6+; and (D11) [Ba, Sr, Ca, Mg].sub.6.5[B, Al, Ga, In].sub.11[Si, Ge].sub.5O.sub.33: U.sup.6+.

    6. A device according to claim 1, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped alkali earth oxide phosphor selected from the group consisting of: (E1) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.4O.sub.7: U.sup.6+; (E2) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.2O.sub.6: U.sup.6+; (E3) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.6O.sub.10: U.sup.6+; (E4) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.2O.sub.4: U.sup.6+; (E5) [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In].sub.2O.sub.7: U.sup.6+; (E6) [Ba, Sr, Ca, Mg].sub.12[B, Al, Ga, In].sub.14O.sub.33: U.sup.6+; (E7) A[Ba, Sr, Ca, Mg][B, Al, Ga, In]O.sub.3: U.sup.6+; (E8) [Ba, Sr, Ca, Mg]O: U.sup.6+; (E9) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In, Sc].sub.2O.sub.5: U.sup.6+; (E10) A[Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In].sub.5O.sub.10: U.sup.6+; and (E11) A[Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In].sub.3O.sub.9: U.sup.6+.

    7. A device according to claim 1, additionally comprising a phosphor of formula I
    A.sub.xMF.sub.y:Mn.sup.4+ I wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, A1, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is an absolute value of a charge of the MF.sub.y ion; and y is 5, 6 or 7.

    8. A device according to claim 4, wherein the phosphor of formula I is K.sub.2SiF.sub.6:Mn.sup.4+.

    9. A lighting apparatus comprising the device of claim 1.

    10. A backlight apparatus comprising the device of claim 1.

    11. The backlight apparatus according to claim 10, wherein the device comprises a green-emitting U.sup.6+-doped phosphor selected from the group consisting of Sr.sub.3B.sub.2O.sub.6: U.sup.6+, Ca.sub.3B.sub.2O.sub.6: U.sup.6+, Ca.sub.10P.sub.6O.sub.25: U.sup.6+, Sr.sub.10P.sub.6O.sub.25U.sup.6+, Sr.sub.4AlPO.sub.8: U.sup.6+, Ba.sub.4AlPO.sub.8: U.sup.6+, Sr.sub.2SiO.sub.4: U.sup.6+, Ca.sub.2SiO.sub.4: U.sup.6+, Sr.sub.3Al.sub.2O.sub.6: U.sup.6+, Ca.sub.3Al.sub.2O.sub.6: U.sup.6+, Ca.sub.12Al.sub.14O.sub.33: U.sup.6+, Ca.sub.2Al.sub.2SiO.sub.7: U.sup.6+, Ca.sub.2BO.sub.3Cl: U.sup.6+, Ca.sub.2PO.sub.4Cl: U.sup.6+, Ca.sub.5(PO.sub.4).sub.3Cl: U.sup.6+, Sr.sub.5(BO.sub.3).sub.3Cl: U.sup.6+, Ca.sub.2GeO.sub.4: U.sup.6+, Sr.sub.2GeO.sub.4: U.sup.6+, Ca.sub.3V.sub.2O.sub.8: U.sup.6+, NaCaPO.sub.4: U.sup.6+, Ca.sub.3In.sub.2O.sub.6: U.sup.6+, LiSrBO.sub.3: U.sup.6+, LiCaBO.sub.3: U.sup.6+, Sr.sub.3Ga.sub.2O.sub.6: U.sup.6+ and LiSr.sub.4B.sub.3O.sub.9: U.sup.6+.

    12. A television comprising the backlight apparatus of claim 10.

    13. A mobile phone comprising the backlight apparatus of claim 10.

    14. A computer monitor comprising the backlight apparatus of claim 10.

    15. A green-emitting U.sup.6+-doped phosphor, selected from [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In][P, V]O.sub.8: U.sup.6+ and [Ba, Sr, Ca, Mg].sub.6[B, Al, Ga, In].sub.5[P, V].sub.5O.sub.26: U.sup.6+.

    16. A device comprising an LED light source optically coupled to a green-emitting U.sup.6+-doped phosphor selected from the group consisting of U.sup.6+-doped phosphate-vanadate phosphors, U.sup.6+-doped halide phosphors, U.sup.6+-doped oxyhalide phosphors, U.sup.6+-doped silicate-germanate phosphors, U.sup.6+-doped alkali earth oxide phosphors, and combinations thereof, with the proviso that the U.sup.6+-doped phosphate-vanadate phosphors do not include Ba.sub.2P.sub.2O.sub.7: U.sup.6+ and Ba.sub.3P.sub.2O.sub.8: U.sup.6+, and the U.sup.6+-doped oxyhalide phosphors do not include Ba.sub.5P.sub.3O.sub.12F: U.sup.6+.

    17. The device according to claim 16, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped phosphate-vanadate phosphor selected from the group consisting of: (A1) [Ba, Sr, Ca, Mg][B, Al, Ga, In][P, V]O.sub.5: U.sup.6+; (A2) Ba.sub.2?x, [Sr, Ca, Mg].sub.x[P.sub.1?y, V.sub.y].sub.2O.sub.7: U.sup.6+; wherein 0?x?2, 0?y?1, and x?0 when y=0; (A3) [Ba, Sr, Ca, Mg].sub.4[P, V].sub.2O.sub.9: U.sup.6+; (A4) [Ba, Sr, Ca, Mg].sub.3[P, V].sub.4O.sub.13: U.sup.6+; (A5) [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In][P, V]O.sub.8: U.sup.6+; (A6) [Ba, Sr, Ca, Mg].sub.6[B, Al, Ga, In].sub.5[P, V].sub.5O.sub.26: U.sup.6+; (A7) Ba.sub.3?x[Sr, Ca, Mg].sub.x[P.sub.1?y, V.sub.y].sub.2O.sub.8: U.sup.6+; wherein 0?x?3, 0?y?1, and x?0 when y=0; (A8) A.sub.2[Ba, Sr, Ca, Mg][P, V].sub.2O.sub.7: U.sup.6+; (A9) A[Ba, Sr, Ca, Mg][P, V]O.sub.4: U.sup.6+; (A10) [Ba, Sr, Ca, Mg][P, V].sub.2O.sub.6: U.sup.6+; (A11) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In][P, V]O.sub.7: U.sup.6+; and (A12) [Ba, Sr, Ca, Mg].sub.10[P, V].sub.6O.sub.25: U.sup.6+.

    18. A device according to claim 16, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped halide phosphor selected from the group consisting of: (B1) [Ba, Sr, Ca, Mg]X.sub.2: U.sup.6+; (B2) A[Ba, Sr, Ca, Mg]X.sub.3: U.sup.6+; and (B3) [Ba, Sr, Ca, Mg].sub.2X.sub.4: U.sup.6+

    19. A device according to claim 16, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped oxyhalide phosphor selected from the group consisting of: (C1) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In]O.sub.3X: U.sup.6+; (C2) [Ba, Sr, Ca, Mg].sub.2[P, V]O.sub.4X: U.sup.6+; (C3) Ba.sub.5?n[Sr, Ca, Mg].sub.n[P.sub.1?m, V.sub.m].sub.3O.sub.12X: U.sup.6+; wherein 0?n?5, 0?m?1, and n?0 when m=0 and X?F; (C4) [Ba, Sr, Ca, Mg].sub.5[B, Al, Ga, In].sub.3O.sub.9X: U.sup.6+; and (C5) [Ba, Sr, Ca, Mg].sub.3[Si, Ge]O.sub.4X: U.sup.6+.

    20. A device according to claim 16, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped silicate-germanate phosphor selected from the group consisting of: (D1) [Ba, Sr, Ca, Mg].sub.2[Si, Ge]O.sub.4: U.sup.6+; (D2) [Ba, Sr, Ca, Mg].sub.3[Si, Ge]O.sub.5: U.sup.6+; (D3) [Ba, Sr, Ca, Mg].sub.3[Si, Ge].sub.2O.sub.7: U.sup.6+; (D4) [Ba, Sr, Ca, Mg][Si, Ge]O.sub.3: U.sup.6+; (D5) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.2[Si, Ge].sub.2O.sub.8: U.sup.6+; (D6) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In].sub.2[Si, Ge]O.sub.7: U.sup.6+; (D7) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.6[Si, Ge].sub.2O.sub.16: U.sup.6+; (D8) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.2[Si, Ge]O.sub.8: U.sup.6+; (D9) [Ba, Sr, Ca, Mg].sub.11[B, Al, Ga, In].sub.2[Si, Ge].sub.4O.sub.22: U.sup.6+; (D10) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.10[Si, Ge]O.sub.20: U.sup.6+; and (D11) [Ba, Sr, Ca, Mg].sub.65[B, Al, Ga, In].sub.11[Si, Ge].sub.5O.sub.33: U.sup.6+

    21. A device according to claim 16, wherein the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped alkali earth oxide phosphor selected from the group consisting of: (E1) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.4O.sub.7: U.sup.6+; (E2) [Ba, Sr, Ca, Mg].sub.3[B, Al, Ga, In].sub.2O.sub.6: U.sup.6+; (E3) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.6O.sub.10: U.sup.6+; (E4) [Ba, Sr, Ca, Mg][B, Al, Ga, In].sub.2O.sub.4: U.sup.6+; (E5) [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In].sub.2O.sub.7: U.sup.6+; (E6) [Ba, Sr, Ca, Mg].sub.12[B, Al, Ga, In].sub.14O.sub.33U.sup.6+; (E7) A[Ba, Sr, Ca, Mg][B, Al, Ga, In]O.sub.3: U.sup.6+; (E8) [Ba, Sr, Ca, Mg]O: U.sup.6+; (E9) [Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In, Sc].sub.2O.sub.5: U.sup.6+; (E10) A[Ba, Sr, Ca, Mg].sub.2[B, Al, Ga, In].sub.5O.sub.10: U.sup.6+; and (E11) A[Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In].sub.3O.sub.9: U.sup.6+.

    Description

    DRAWINGS

    [0006] These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

    [0007] FIG. 1 is a schematic cross-sectional view of a device, in accordance with one embodiment of the disclosure;

    [0008] FIG. 2 is a schematic cross-sectional view of a lighting apparatus, in accordance with one embodiment of the disclosure;

    [0009] FIG. 3 is a schematic cross-sectional view of a lighting apparatus, in accordance with another embodiment of the disclosure;

    [0010] FIG. 4 is a cutaway side perspective view of a lighting apparatus, in accordance with one embodiment of the disclosure;

    [0011] FIG. 5 is a schematic perspective view of a surface-mounted device (SMD), in accordance with one embodiment of the disclosure;

    [0012] FIG. 6 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A1;

    [0013] FIG. 7 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A1;

    [0014] FIG. 8 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A1 in glass form;

    [0015] FIG. 9 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A1 in glass form;

    [0016] FIG. 10 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A1;

    [0017] FIG. 11 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A8;

    [0018] FIG. 12 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A2;

    [0019] FIG. 13 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A2;

    [0020] FIG. 14 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A2;

    [0021] FIG. 15 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A2;

    [0022] FIG. 16 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula B1;

    [0023] FIG. 17 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula B1;

    [0024] FIG. 18 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula B1;

    [0025] FIG. 19 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula B1;

    [0026] FIG. 20 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E1;

    [0027] FIG. 21 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E1;

    [0028] FIG. 22 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E1;

    [0029] FIG. 23 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E1;

    [0030] FIG. 24 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E1;

    [0031] FIG. 25 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E1;

    [0032] FIG. 26 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E1;

    [0033] FIG. 27 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0034] FIG. 28 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0035] FIG. 29 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0036] FIG. 30 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0037] FIG. 31 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0038] FIG. 32 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0039] FIG. 33 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0040] FIG. 34 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0041] FIG. 35 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0042] FIG. 36 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0043] FIG. 37 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E2;

    [0044] FIG. 38 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E3;

    [0045] FIG. 39 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A3;

    [0046] FIG. 40 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A3;

    [0047] FIG. 41 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A4;

    [0048] FIG. 42 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A4;

    [0049] FIG. 43 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula B2;

    [0050] FIG. 44 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula B3;

    [0051] FIG. 45 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A5;

    [0052] FIG. 46 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A5;

    [0053] FIG. 47 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A5;

    [0054] FIG. 48 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A5;

    [0055] FIG. 49 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A5;

    [0056] FIG. 50 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A5;

    [0057] FIG. 51 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A6;

    [0058] FIG. 52 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A6;

    [0059] FIG. 53 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A6;

    [0060] FIG. 54 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A6;

    [0061] FIG. 55 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A6;

    [0062] FIG. 56 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A6;

    [0063] FIG. 57 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E4;

    [0064] FIG. 58 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E4;

    [0065] FIG. 59 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D1;

    [0066] FIG. 60 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D1;

    [0067] FIG. 61 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D1;

    [0068] FIG. 62 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D1;

    [0069] FIG. 63 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D2;

    [0070] FIG. 64 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D2;

    [0071] FIG. 65 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E5;

    [0072] FIG. 66 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E5;

    [0073] FIG. 67 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D3;

    [0074] FIG. 68 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E6;

    [0075] FIG. 69 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D4;

    [0076] FIG. 70 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D4;

    [0077] FIG. 71 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A7;

    [0078] FIG. 72 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A7;

    [0079] FIG. 73 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A7;

    [0080] FIG. 74 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A7;

    [0081] FIG. 75 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D5;

    [0082] FIG. 76 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D5;

    [0083] FIG. 77 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D5;

    [0084] FIG. 78 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D5;

    [0085] FIG. 79 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D6;

    [0086] FIG. 80 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula C1;

    [0087] FIG. 81 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula C2;

    [0088] FIG. 82 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula C3;

    [0089] FIG. 83 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula C3;

    [0090] FIG. 84 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E8;

    [0091] FIG. 85 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A8;

    [0092] FIG. 86 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A8;

    [0093] FIG. 87 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A8;

    [0094] FIG. 88 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A8;

    [0095] FIG. 89 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A9;

    [0096] FIG. 90 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A9;

    [0097] FIG. 91 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A9;

    [0098] FIG. 92 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A9;

    [0099] FIG. 93 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A9;

    [0100] FIG. 94 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A9;

    [0101] FIG. 95 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A9;

    [0102] FIG. 96 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A10;

    [0103] FIG. 97 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A10;

    [0104] FIG. 98 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula C3;

    [0105] FIG. 99 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E7;

    [0106] FIG. 100 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E7;

    [0107] FIG. 101 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula C5;

    [0108] FIG. 102 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A11;

    [0109] FIG. 103 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula A11;

    [0110] FIG. 104 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D7;

    [0111] FIG. 105 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D8;

    [0112] FIG. 106 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D9;

    [0113] FIG. 107 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D10;

    [0114] FIG. 108 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula D11;

    [0115] FIG. 109 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E9;

    [0116] FIG. 110 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E10; and

    [0117] FIG. 111 shows an excitation spectrum and an emission spectrum of a green emitting U.sup.6+-doped phosphor of formula E11.

    DETAILED DESCRIPTION

    [0118] In the following specification and the claims, the singular forms a, an and the include plural referents unless the context clearly dictates otherwise. As used herein, the term or is not meant to be exclusive and refers to at least one of the referenced components being present and includes instances in which a combination of the referenced components may be present, unless the context clearly dictates otherwise.

    [0119] Approximating language, as used herein throughout the specification and claims, may be applied to modify any quantitative representation that could permissibly vary without resulting in a change in the basic function to which it is related. Accordingly, a value modified by a term or terms, such as about and substantially is not limited to the precise value specified. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value.

    [0120] Devices according to the present disclosure include an LED light source optically coupled to a green-emitting U.sup.6+-doped phosphor selected from the group consisting of U.sup.6+-doped phosphate-vanadate phosphors, U.sup.6+-doped halide phosphors, U.sup.6+-doped oxyhalide phosphors, U.sup.6+-doped silicate-germanate phosphors, U.sup.6+-doped alkali earth oxide phosphors, and combinations thereof. In some embodiments, the U.sup.6+-doped phosphate-vanadate phosphors are selected from the group consisting of compositions of formulas (A1)-(A12). In some embodiments, the U.sup.6+-doped phosphate-vanadate phosphors do not include Ba.sub.2P.sub.2O.sub.7: U.sup.6+ and Ba.sub.3P.sub.2O.sub.8: U.sup.6+. In some embodiments, the U.sup.6+-doped halide phosphors are selected from the group consisting of compositions for formulas (B1)-(B3). In some embodiments, the U.sup.6+-doped oxyhalide phosphors are selected from the group consisting of compositions of formulas (C1)-(C5). In some embodiments, the U.sup.6+-doped oxyhalide phosphors do not include Ba.sub.5P.sub.3O.sub.12F: U.sup.6+. In some embodiments, the U.sup.6+-doped silicate-germanate phosphors are selected from the group consisting of compositions of formulas (D1)-(D11). In some embodiments, the U.sup.6+-doped alkali earth oxide phosphors are selected from the group consisting of formulas (E1)-(E11).

    [0121] Each formula of the green-emitting U.sup.6+-doped phosphor may represent various compositions. The square brackets in the formulas (A1)-(A12), (B1)-(B3), (C1)-(C5), (D1)-(D11), and (E1)-(E11) indicate that at least one of the elements, is present in the phosphor composition, and any combination of two or more thereof may be present. For example, the formula [Ba, Sr, Ca, Mg][B, Al, Ga, In][P, V]O.sub.5: U.sup.6+ encompasses at least one of Ba, Sr, Ca, Mg or any combination of two or more of Ba, Sr, Ca, Mg; and at least one of B, Al, Ga, In, or any combination of two or more of B, Al, Ga, In. Examples include BaBPO.sub.5:U.sup.6+, SrBPO.sub.5:U.sup.6+, MgAlPO.sub.5:U.sup.6+, Sr[B.sub.xAl.sub.1?x]PO.sub.5:U.sup.6+, where 0?x?1, or a combination thereof. Furthermore, the compositions of formulas (A1)-(A12), (B1)-(B3), (C1)-(C5), (D1)-(D11), and (E1)-(E11) show U.sup.6+ after the colon : in the formulas. This representation indicates that the phosphor compositions are doped with U.sup.6+ and may be referred to as U.sup.6+-doped phosphor.

    [0122] As used herein, the term phosphate-vanadate phosphor refers to a compound having a composition selected from the formulas (A1)-(A12) that encompasses P, V or a combination thereof.

    [0123] As used herein, the term silicate-germanate phosphor refers to a compound having a composition selected from the formulas (D1)-(D11) that encompasses Si, Ge, or a combination thereof.

    [0124] The green-emitting U.sup.6+-doped phosphors disclosed herein absorb radiation in the near-UV or blue region (a wavelength range between about 400 nm and 470 nm) and emit in a narrow region with an emission peak centered in a wavelength range from about 510 nm to about 540 nm, particularly from about 520 nm to about 530 nm. In some embodiments, these phosphors may be utilized in a phosphor blend to produce white light. These narrow green-emitting phosphors are useful in display applications, in particular.

    [0125] The green-emitting U.sup.6+-doped phosphors are activated or doped with an activator ion U.sup.6+. In some embodiments, an additional activator ion may be present such as Mn.sup.2+, Mn.sup.4+, Ce.sup.3+, Sn.sup.2+, Bi.sup.3+, Sb.sup.3+, Cr.sup.3+, Tb.sup.3+, Pr.sup.3+, Eu.sup.3+, Ti.sup.4+, In.sup.+, Tl.sup.+, Dy.sup.3+ and Pb.sup.2+.

    [0126] In some embodiments, the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped phosphate-vanadate phosphor selected from the group consisting of compositions of formulas (A1)-(A12) and a combination thereof. In some embodiments, the green-emitting U.sup.6+-doped phosphor is selected from [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In][P, V]O.sub.8: U.sup.6+ and [Ba, Sr, Ca, Mg].sub.6[B, Al, Ga, In].sub.5[P, V].sub.5O.sub.26: U.sup.6+. In certain embodiments, the green-emitting U.sup.6+-doped phosphate-vanadate phosphor is [Ba, Sr, Ca, Mg].sub.4[B, Al, Ga, In][P, V]O.sub.8: U.sup.6+. Examples include, but are not limited to, Sr.sub.4AlPO.sub.8: U.sup.6+, Ba.sub.4AlPO.sub.8: U.sup.6+, Ca.sub.4AlPO.sub.8: U.sup.6+, SrBa.sub.3AlPO.sub.8: U.sup.6+, Sr.sub.2Ba.sub.2AlPO.sub.8: U.sup.6+, or Sr.sub.3BaAlPO.sub.8: U.sup.6+. In certain embodiments, the green-emitting U.sup.6+-doped U.sup.6+-doped phosphate-vanadate phosphor is [Ba, Sr, Ca, Mg].sub.6[B, Al, Ga, In].sub.5[P, V].sub.5O.sub.26: U.sup.6+. Examples include, but are not limited to, Ba.sub.6Al.sub.5P.sub.5O.sub.26: U.sup.6+, Ba.sub.6Ga.sub.5P.sub.5O.sub.26: U.sup.6+, Ba.sub.6In.sub.5P.sub.5O.sub.26: U.sup.6+, Ba.sub.6Al.sub.5V.sub.5O.sub.26: U.sup.6+, Ba.sub.6Ga.sub.5V.sub.5O.sub.26: U.sup.6+, or Ba.sub.6In.sub.5V.sub.5O.sub.26: U.sup.6+. Other non-limiting examples include SrBPO.sub.5: U.sup.6+, BaBP.sub.5: U.sup.6+, MgAlPO.sub.5: U.sup.6+, Ca.sub.2V.sub.2O.sub.7: U.sup.6+, Ba.sub.2V.sub.2O.sub.7: U.sup.6+, CaMgV.sub.2O.sub.7: U.sup.6+, SrMgV.sub.2O.sub.7: U.sup.6+, Sr.sub.4P.sub.2O.sub.9: U.sup.6+, Ca.sub.4P.sub.2O.sub.9: U.sup.6+, Ba.sub.3P.sub.4O.sub.13: U.sup.6+, Sr.sub.3P.sub.4O.sub.13: U.sup.6+, Ca.sub.10P.sub.6O.sub.25: U.sup.6+, Sr.sub.10P.sub.6O.sub.25: U.sup.6+, Mg.sub.3P.sub.2O.sub.8: U.sup.6+, Ca.sub.3V.sub.2O.sub.8: U.sup.6+, Ba.sub.3V.sub.2O.sub.8: U.sup.6+, BaMg.sub.2V.sub.2O.sub.8: U.sup.6+, Cs.sub.2CaP.sub.2O.sub.7: U.sup.6+, Cs.sub.2SrP.sub.2O.sub.7: U.sup.6+, Cs.sub.2CaV.sub.2O.sub.7: U.sup.6+, Cs.sub.2SrV.sub.2O.sub.7: U.sup.6+, Li.sub.2BaP.sub.2O.sub.7: U.sup.6+, NaCaPO.sub.4: U.sup.6+, LiSrPO.sub.4: U.sup.6+, NaSrPO.sub.4: U.sup.6+, KSrPO.sub.4: U.sup.6+, KBaVO.sub.4: U.sup.6+, KSrVO.sub.4: U.sup.6+, KCaVO.sub.4: U.sup.6+, BaP.sub.2O.sub.6: U.sup.6+, CaV.sub.2O.sub.6: U.sup.6+, Ba.sub.3BPO.sub.7: U.sup.6+ or Sr.sub.3BPO.sub.7: U.sup.6+.

    [0127] In some embodiments, the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped halide phosphor selected from the group consisting of compositions of formulas (B1)-(B3) and a combination thereof. Examples include, but are not limited to, CaF.sub.2: U.sup.6+, BaF.sub.2: U.sup.6+, BaFCl: U.sup.6+, BaFBr: U.sup.6+, LiBaF.sub.3: U.sup.6+, or BaMgF.sub.4: U.sup.6+. In some embodiments, the green-emitting U.sup.6+-doped phosphor is U.sup.6+-doped oxyhalide phosphor selected from the group consisting of compositions of formulas (C1)-(C5) and a combination thereof. Examples include, but are not limited to, Ca.sub.2BO.sub.3Cl: U.sup.6+, Ca.sub.2PO.sub.4Cl: U.sup.6+, Ca.sub.5(PO.sub.4).sub.3Cl: U.sup.6+, Ba.sub.5V.sub.3O.sub.12Cl: U.sup.6+, Sr.sub.5(BO.sub.3).sub.3Cl: U.sup.6+, or Sr.sub.3GeO.sub.4F: U.sup.6+. In some embodiments, the green-emitting U.sup.6+-doped phosphor is a U.sup.6+-doped silicate-germanate phosphor selected from the group consisting of compositions of formulas (D1)-(D11) and a combination thereof. Examples include, but are not limited to, Ca.sub.2SiO.sub.4: U.sup.6+, Mg.sub.2SiO.sub.4: U.sup.6+, Ca.sub.2GeO.sub.4: U.sup.6+, Sr.sub.2GeO.sub.4: U.sup.6+, Sr.sub.3SiO.sub.5: U.sup.6+, Ca.sub.3SiO.sub.5: U.sup.6+, Ca.sub.3Si.sub.2O.sub.7: U.sup.6+, MgSiO.sub.3: U.sup.6+, BaGeO.sub.3: U.sup.6+, BaAl.sub.2Si.sub.2O.sub.8: U.sup.6+, SrAl.sub.2Si.sub.2O.sub.8: U.sup.6+, CaAl.sub.2Si.sub.2O.sub.8: U.sup.6+, BaGa.sub.2Si.sub.2O.sub.8: U.sup.6+, CaAl.sub.2SiO.sub.7: U.sup.6+, Ba.sub.3B.sub.6Si.sub.2O.sub.16: U.sup.6+, Ca.sub.11B.sub.2Si.sub.4O.sub.22: U.sup.6+, Sr.sub.3Al.sub.10SiO.sub.2O: U.sup.6+, or Ba.sub.6.5Al.sub.11Si.sub.5O.sub.33: U.sup.6+. In some embodiments, the green-emitting U.sup.6+-doped phosphor is U.sup.6+-doped alkali earth phosphor selected from the group consisting of compositions of formulas (E1)-(E11) and a combination thereof. Examples include, but are not limited to, CaAl.sub.2B.sub.2O.sub.7: U.sup.6+, SrAl.sub.2B.sub.2O.sub.7: U.sup.6+, BaAl.sub.2B.sub.2O.sub.7: U.sup.6+, CaB.sub.4O.sub.7: U.sup.6+, SrB.sub.4O.sub.7: U.sup.6+, SrAl.sub.3BO.sub.7: U.sup.6+, CaAlB.sub.3O.sub.7: U.sup.6+, Ca.sub.3B.sub.2O.sub.6: U.sup.6+, Sr.sub.3B.sub.2O.sub.6: U.sup.6+, Ba.sub.3B.sub.2O.sub.6: U.sup.6+, Sr.sub.3Al.sub.2O.sub.6: U.sup.6+, Ca.sub.3Al.sub.2O.sub.6: U.sup.6+, Ba.sub.2SrAl.sub.2O.sub.6: U.sup.6+, BaSr.sub.2Al.sub.2O.sub.6: U.sup.6+, Ba.sub.2SrB.sub.2O.sub.6: U.sup.6+, BaSr.sub.2B.sub.2O.sub.6: U.sup.6+, Ca.sub.3In.sub.2O.sub.6: U.sup.6+, Sr.sub.3In.sub.2O.sub.6: U.sup.6+, SrB.sub.6O.sub.10: U.sup.6+, SrAl.sub.2O.sub.4: U.sup.6+, SrAlBO.sub.4: U.sup.6+, Sr.sub.4Al.sub.2O.sub.7: U.sup.6+, Ca.sub.4Al.sub.2O.sub.7: U.sup.6+, Sr.sub.10Ga.sub.6Sc.sub.4O.sub.25: U.sup.6+, Ca.sub.12Al.sub.14O.sub.33: U.sup.6+, LiSrBO.sub.3: U.sup.6+, LiCaBO.sub.3: U.sup.6+, SrO: U.sup.6+, LiBa.sub.2B.sub.5O.sub.10: U.sup.6+, or LiSr.sub.4B.sub.3O.sub.9: U.sup.6+.

    [0128] In some embodiments, the device specifically for a backlight apparatus, includes a green-emitting U.sup.6+-doped phosphor selected from the group consisting of Sr.sub.3B.sub.2O.sub.6: U.sup.6+, Ca.sub.3B.sub.2O.sub.6: U.sup.6+, Ca.sub.10P.sub.6O.sub.25: U.sup.6+, Sr.sub.10P.sub.6O.sub.25: U.sup.6+, Sr.sub.4AlPO.sub.8: U.sup.6+, Ba.sub.4AlPO.sub.8: U.sup.6+, Sr.sub.2SiO.sub.4: U.sup.6+, Ca.sub.2SiO.sub.4: U.sup.6+, Sr.sub.3Al.sub.2O.sub.6: U.sup.6+, Ca.sub.3Al.sub.2O.sub.6: U.sup.6+, Ca.sub.12Al.sub.14O.sub.033: U.sup.6+, Ca.sub.2Al.sub.2SiO.sub.7: U.sup.6+, Ca.sub.2BO.sub.3Cl: U.sup.6+, Ca.sub.2PO.sub.4Cl: U.sup.6+, Ca.sub.5(PO.sub.4).sub.3Cl: U.sup.6+, Sr.sub.5(BO.sub.3).sub.3Cl: U.sup.6+, Ca.sub.2GeO.sub.4: U.sup.6+, Sr.sub.2GeO.sub.4: U.sup.6+, Ca.sub.3V.sub.2O.sub.8: U.sup.6+, NaCaPO.sub.4: U.sup.6+, Ca.sub.3In.sub.2O.sub.6: U.sup.6+, LiSrBO.sub.3: U.sup.6+, LiCaBO.sub.3: U.sup.6+, Sr.sub.3Ga.sub.2O.sub.6: U.sup.6+ and LiSr.sub.4B.sub.3O.sub.9: U.sup.6+.

    [0129] Devices of the present disclosure may be used as lighting and backlight apparatuses for general illumination and display applications. Examples include chromatic lamps, plasma screens, xenon excitation lamps, UV excitation marking systems, automotive headlamps, home and theatre projectors, laser pumped devices, point sensors, liquid crystal display (LCD) backlight units, televisions, computer monitors, mobile phones, smartphone, tablet computers and other handheld devices that have a display including an LED source as described herein. The list of these applications is meant to be merely exemplary and not exhaustive.

    [0130] FIG. 1 show a device 10, according to one embodiment of the present disclosure. The device 10 includes a LED light source 12 and a phosphor material 14 including a green-emitting U.sup.6+-doped phosphor as described above in the present disclosure. The LED light source 12 may comprise a UV or blue emitting LED. In some embodiments, the LED light source 12 produces blue light in a wavelength range from about 440 nm to about 460 nm. In the device 10, the phosphor material 14 including the green-emitting U.sup.6+-doped phosphor as described herein, is optically coupled to the LED light source 12. Optically coupled means that radiation from the LED light source 12 is able to excite the phosphor material 14, and the phosphor material 14 is able to emit light in response to the excitation by the radiation. The phosphor material 14 may be disposed on a part of the LED light source 12 or located remotely at a distance from the LED light source 12.

    [0131] The general discussion of the example LED light source discussed herein is directed toward an inorganic LED based light source. However, as used herein, the term is meant to encompass all LED light sources such as semiconductor laser diodes (LD), organic light emitting diodes (OLED) or a hybrid of LED and LD. Further, it should be understood that the LED light source may be replaced, supplemented or augmented by another radiation source unless otherwise noted and that any reference to semiconductor, semiconductor LED, or LED chip is merely representative of any appropriate radiation source, including, but not limited to, LDs and OLEDs.

    [0132] In some embodiments, the phosphor material 14 further includes a red emitting phosphor of formula I: A.sub.2[MF.sub.6]:Mn.sup.4+, where A is Li, Na, K, Rb, Cs, or a combination thereof; and M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof. The red emitting phosphor of formula is optically coupled to the LED light source. The phosphors of formula I are described in U.S. Pat. Nos. 7,497,973, and 8,906,724, and related patents assigned to the General Electric Company.

    [0133] Examples of the red emitting phosphors of formula I include K.sub.2[SiF.sub.6]:Mn.sup.4+, K.sub.2[TiF.sub.6]:Mn.sup.4+, K.sub.2[SnF.sub.6]:Mn.sup.4+, Cs.sub.2[TiF.sub.6]:Mn.sup.4+, Rb.sub.2[TiF.sub.6]:Mn.sup.4+, Cs.sub.2[SiF.sub.6]:Mn.sup.4+, Rb.sub.2[SiF.sub.6]:Mn.sup.4+, Na.sub.2[TiF.sub.6]:Mn.sup.4+, Na.sub.2[ZrF.sub.6]:Mn.sup.4+, K.sub.3[ZrF.sub.7]:Mn.sup.4+, K.sub.3[BiF.sub.7]:Mn.sup.4+, K.sub.3[YF.sub.7]:Mn.sup.4+, K.sub.3[LaF.sub.7]:Mn.sup.4+, K.sub.3[GdF.sub.7]:Mn.sup.4+, K.sub.3[NbF.sub.7]:Mn.sup.4+ or K.sub.3[TaF.sub.7]:Mn.sup.4+. In certain embodiments, the phosphor of formula I is K.sub.2SiFe:Mn.sup.4+.

    [0134] The phosphor material 14 may be present in any form such as powder, glass, composite e.g., phosphor-polymer composite or phosphor-glass composite. Further, the phosphor material 14 may be used as a layer, sheet, strip, dispersed particulates, or a combination thereof. In some embodiments, the phosphor material 14 includes the green-emitting U.sup.6+-doped phosphor in glass form. In some of these embodiments, the device 10 may include the phosphor material 14 in form of a phosphor wheel (not shown in figures). The phosphor wheel may include the green-emitting U.sup.6+-doped phosphor in glass form. For example, the phosphor wheel may include a U.sup.6+-doped phosphate-vanadate phosphor such as SrBPO.sub.5: U.sup.6+ in glass form. A phosphor wheel and related devices are described in a previously filed patent application Serial No. PCT/US17/31654.

    [0135] In some embodiments, the device 10 may be a backlight unit for display applications. In these embodiments, the phosphor material 14 including the green-emitting U.sup.6+-doped phosphor, may be present in form of a sheet or strip that is mounted or disposed on a surface of the LED light source 12. A backlight unit and related devices are described in a previously filed patent application Ser. No. 15/370,762.

    [0136] FIG. 2 illustrates a lighting apparatus or lamp 20, in accordance with some embodiments. The lighting apparatus 20 includes an LED chip 22, and leads 24 electrically attached to the LED chip 22. The leads 24 may comprise thin wires supported by a thicker lead frame(s) 26 or the leads 24 may comprise self supported electrodes and the lead frame may be omitted. The leads 24 provide current to LED chip 22 and thus cause it to emit radiation.

    [0137] A layer 30 of a phosphor material including the green-emitting U.sup.6+-doped phosphor is disposed on a surface 21 of the LED chip 22. The phosphor layer 30 may be disposed by any appropriate method, for example using a slurry prepared by mixing silicone and the phosphor material. In one such method, a silicone slurry in which the phosphor material particles are randomly suspended is placed around the LED chip 12. This method is merely exemplary of possible positions of the phosphor layer 30 and LED chip 22. The phosphor layer 30 may be coated over or directly on the light emitting surface of the LED chip 22 by coating and drying the slurry over the LED chip 22. The light emitted by the LED chip 22 mixes with the light emitted by the phosphor material to produce desired emission.

    [0138] With continued reference to FIG. 2, the LED chip 22 may be encapsulated within an envelope 28. The envelope 28 may be formed of, for example glass or plastic. The LED chip 22 may be enclosed by an encapsulant material 32. The encapsulant material 32 may be a low temperature glass, or a polymer or resin known in the art, for example, an epoxy, silicone, epoxy-silicone, acrylate or a combination thereof. In an alternative embodiment, the lighting apparatus 20 may only include the encapsulant material 32 without the envelope 28. Both the envelope 28 and the encapsulant material 32 should be transparent to allow light to be transmitted through those elements.

    [0139] In some embodiments as illustrated in FIG. 3, a phosphor material 33 green-emitting U.sup.6+-doped phosphor is interspersed within the encapsulant material 32, instead of being formed directly on the LED chip 22, as shown in FIG. 2. The phosphor material 33 may be interspersed within a portion of the encapsulant material 32 or throughout the entire volume of the encapsulant material 32. Blue light emitted by the LED chip 22 mixes with the light emitted by phosphor material 33, and the mixed light transmits out from the lighting apparatus 20.

    [0140] In yet another embodiment, a layer 34 of the phosphor material including the green-emitting U.sup.6+-doped phosphor, is coated onto a surface of the envelope 28, instead of being formed over the LED chip 22, as illustrated in FIG. 4. As shown, the phosphor layer 34 is coated on an inside surface 29 of the envelope 28, although the phosphor layer 34 may be coated on an outside surface of the envelope 28, if desired. The phosphor layer 34 may be coated on the entire surface of the envelope 28 or only a top portion of the inside surface 29 of the envelope 28. The UV/blue light emitted by the LED chip 22 mixes with the light emitted by the phosphor layer 34, and the mixed light transmits out. Of course, the phosphor material may be located in any two or all three locations (as shown in FIGS. 2-4) or in any other suitable location, such as separately from the envelope 28 or integrated into the LED chip 22.

    [0141] In any of the above structures, the lighting apparatus 20 (FIGS. 2-4) may also include a plurality of scattering particles (not shown), which are embedded in the encapsulant material 32. The scattering particles may comprise, for example, alumina, silica, zirconia, or titania. The scattering particles effectively scatter the directional light emitted from the LED chip 22, preferably with a negligible amount of absorption.

    [0142] Some embodiments include a surface mounted device (SMD) type light emitting diode 50, e.g. as illustrated in FIG. 5, for backlight applications. This SMD is a side-emitting type and has a light-emitting window 52 on a protruding portion of a light guiding member 54. An SMD package may comprise an LED chip as defined above, and a phosphor material including the green-emitting U.sup.6+-doped phosphor as described herein.

    [0143] In addition to the green-emitting U.sup.6+-doped phosphor and, optionally, the red-emitting Mn.sup.4+ doped phosphor of formula I, the phosphor material may further include one or more other luminescent materials. Additional luminescent materials such as blue, yellow, red, orange, or other color phosphors may be used in the phosphor material to customize the white color of the resulting light and produce specific spectral power distributions.

    [0144] Suitable additional phosphors for use in the phosphor material include, but are not limited to:

    [0145] ((Sr.sub.1?z (Ca, Ba, Mg, Zn).sub.z).sub.1?(x+w)(Li, Na, K, Rb).sub.wCe.sub.x).sub.3(Al.sub.1?ySi.sub.y)O.sub.4+y+3(x?w)F.sub.1?y?3(x?w), 0?x?1.10, 0?y?0.5, 0?0?z?0.5, 0?w?x; (Ca, Ce).sub.3Sc.sub.2S.sub.3O.sub.12(CaSiG); (Sr,Ca,Ba).sub.3Al.sub.1?xSi.sub.xO.sub.4+xF.sub.1?x:Ce.sup.3+ (SASOF)); (Ba,Sr,Ca).sub.5(PO.sub.4).sub.3(Cl,F,Br,OH):Eu.sup.2+,Mn.sup.2+; (Ba,Sr,Ca)BPO.sub.5:Eu.sup.2+,Mn.sup.2+; (Sr,Ca).sub.10(PO.sub.4).sub.6*vB.sub.2O.sub.3:Eu.sup.2+ (wherein 0<v?1); Sr.sub.2Si.sub.3O.sub.8*2SrCl.sub.2:Eu.sup.2+; (Ca,Sr,Ba).sub.3MgSi.sub.2O.sub.8:Eu.sup.2+,Mn.sup.2+; BaAl.sub.8O.sub.13:Eu.sup.2+; 2SrO*0.84P.sub.2O.sub.5*0.16B.sub.2O.sub.3:Eu.sup.2+; (Ba,Sr,Ca)MgAl.sub.10O.sub.17:Eu.sup.2+,Mn.sup.2+; (Ba,Sr,Ca)Al.sub.2O.sub.4:Eu.sup.2+; (Y,Gd,Lu,Sc,La)BO.sub.3:Ce.sup.3+,Tb.sup.3+; ZnS:Cu.sup.+,Cl.sup.?; ZnS:Cu.sup.+,Al.sup.3+; ZnS:Ag.sup.+,Cl.sup.?; ZnS:Ag.sup.+,Al.sup.3+; (Ba,Sr,Ca).sub.2Si.sub.1?nO.sub.4?2n:Eu.sup.2+ (wherein 0?n?0.2); (Ba,Sr,Ca).sub.2(Mg,Zn)Si.sub.2O.sub.7:Eu.sup.2+; (Sr,Ca,Ba)(Al,Ga,In).sub.2S.sub.4:Eu.sup.2+; (Y,Gd,Tb,La,Sm,Pr,Lu).sub.3(Al,Ga).sub.5?aO.sub.12?3/2a:Ce.sup.3+ (wherein (0?a?0.5); (Ca,Sr).sub.8(Mg,Zn)(SiO.sub.4).sub.4Cl.sub.2:Eu.sup.2+,Mn.sup.2+; Na.sub.2Gd.sub.2B.sub.2O.sub.7:Ce.sup.3+,Tb.sup.3+; (Sr,Ca,Ba,Mg,Zn).sub.2P.sub.2O.sub.7:Eu.sup.2+,Mn.sup.2+; (Gd,Y,Lu,La).sub.2O.sub.3:Eu.sup.3+,Bi.sup.3+; (Gd,Y,Lu,La).sub.2O.sub.2S:Eu.sup.3+,Bi.sup.3+; (Gd,Y,Lu,La)VO.sub.4:Eu.sup.3+,Bi.sup.3+; (Ca,Sr)S:Eu.sup.2+,Ce.sup.3+; SrY.sub.2S.sub.4:Eu.sup.2+; CaLa.sub.2S.sub.4:Ce.sup.3+; (Ba,Sr,Ca)MgP.sub.2O.sub.7:Eu.sup.2+,Mn.sup.2+; (Y,Lu).sub.2WO.sub.6:Eu.sup.3+,Mo.sup.6+; (Ba,Sr,Ca).sub.bSi.sub.gN.sub.m:Eu.sup.2+ (wherein 2b+4g=3m); Ca.sub.3(SiO.sub.4)Cl.sub.2:Eu.sup.2+; (Lu,Sc,Y,Tb).sub.2?u?vCe.sub.vCa.sub.1+uLi.sub.wMg.sub.2?wP.sub.w(Si,Ge).sub.3?wO.sub.12?u/2 (where ?0.5?u?1, 0<v?0.1, and 0?w?0.2); (Y,Lu,Gd).sub.2?m(Y,Lu,Gd)Ca.sub.mSi.sub.4N.sub.6+mC.sub.1?m:Ce.sup.3+, (wherein 0?m?0.5); (Lu,Ca,Li,Mg,Y), alpha-SiAlON doped with Eu.sup.2+ and/or Ce.sup.3+; Sr(LiAl.sub.3N.sub.4):Eu.sup.2+, (Ca,Sr,Ba)SiO.sub.2N.sub.2:Eu.sup.2+,Ce.sup.3+; beta-SiAlON:Eu.sup.2+, 3.5MgO*0.5MgF.sub.2*GeO.sub.2:M n.sup.4+; Ca.sub.1?c?fCe.sub.cEu.sub.fAl.sub.1+cSi.sub.1?cN.sub.3, (where 0?c?0.2, 0?f?0.2); Ca.sub.1?h?rCe.sub.hEu.sub.rAl.sub.1?h(Mg,Zn).sub.hSiN.sub.3, (where 0?h?0.2, 0?r?0.2); Ca.sub.1?2s?tCe.sub.s(Li,Na).sub.sEu.sub.tAlSiN.sub.3, (where 0?s?0.2, 0?t?0.2, s+t>0); (Sr, Ca)AlSi N.sub.3: Eu.sup.2+,Ce.sup.3+, and Li.sub.2CaSiO.sub.4:Eu.sup.2+.

    [0146] The ratio of each of the individual phosphors in the phosphor material may vary depending on the characteristics of the desired light output. The relative proportions of the individual phosphors in the various phosphor materials may be adjusted such that when their emissions are blended and employed in a device, for example a lighting apparatus, there is produced visible light of predetermined x and y values on the CIE chromaticity diagram.

    [0147] Other additional luminescent materials suitable for use in the phosphor material may include electroluminescent polymers such as polyfluorenes, preferably poly(9,9-dioctyl fluorene) and copolymers thereof, such as poly(9,9-dioctylfluorene-co-bis-N,N-(4-butylphenyl)diphenylamine) (F8-TFB); poly(vinylcarbazole) and polyphenylenevinylene and their derivatives. In addition, the light emitting layer may include a blue, yellow, orange, green or red phosphorescent dye or metal complex, a quantum dot material, or a combination thereof. Materials suitable for use as the phosphorescent dye include, but are not limited to, tris(1-phenylisoquinoline) iridium (III) (red dye), tris(2-phenylpyridine) iridium (green dye) and Iridium (III) bis(2-(4,6-difluorephenyOpyridinato-N,C2) (blue dye). Commercially available fluorescent and phosphorescent metal complexes from ADS (American Dyes Source, Inc.) may also be used. ADS green dyes include ADS060GE, ADS061GE, ADS063GE, and ADS066GE, ADS078GE, and ADS090GE. ADS blue dyes include ADS064BE, ADS065BE, and ADS070BE. ADS red dyes include ADS067RE, ADS068RE, ADS069RE, ADS075RE, ADS076RE, ADS067RE, and ADS077RE. Exemplary quantum dot materials are based on CdSe, ZnS or InP, including, but not limited to, core/shell luminescent nanocrystals such as CdSe/ZnS, InP/ZnS, PbSe/PbS, CdSe/CdS, CdTe/CdS or CdTe/ZnS. Other examples of the quantum dot materials include perovskite quantum dots such as CsPbX.sub.3, where X is Cl, Br, I or a combination thereof.

    [0148] By use of the embodiments described in the present disclosure, particularly the phosphor materials described herein, devices can be provided producing white light for display applications for example LCD backlight units, having high color gamut and high luminosity. Alternately, by use of the embodiments described in the present disclosure, particularly the phosphor materials described herein, devices can be provided producing white light for general illumination having high luminosity and high CRI values for a wide range of color temperatures of interest (2500 K to 10000 K).

    EXAMPLES

    Example 1: Preparation of U.SUP.6+.-doped SrBPO.SUB.5

    [0149] A 3-gram sample of 1% U.sup.6+-doped SrBPO.sub.5 was synthesized using 2.0789 g of SrCO.sub.3, 0.0384 g of UO.sub.2, and 1.5048 g of BPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using yttria stabilized zirconia (YSZ) media. The powder was then transferred to an alumina crucible and fired at 900 degrees Celsius (? C.) in air for 5 hrs. After firing, the powder was again blended for 2 hrs and fired at 1000? C. in air for 5 hrs. FIG. 6 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrBPO.sub.5.

    Example 2: Preparation of U.SUP.6+.-doped BaBPO.SUB.5

    [0150] A 3-gram sample of 1% U.sup.6+-doped BaBPO.sub.5 was synthesized using 2.2533 g of SrCO.sub.3, 0.0311 g of UO.sub.2, and 1.2201 g of BPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 900? C. in air for 5 hrs. After firing, the powder was again blended for 2 hrs and fired at 900? C. in air for 5 hrs. FIG. 7 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaBPO.sub.5.

    Example 3: Preparation of U.SUP.6+.-doped SrBPO.SUB.5 .and U.SUP.6+.-doped BaBPO.SUB.5 .as a Glass

    [0151] Both SrBPO.sub.5 and BaBPO.sub.5 can form luminescent glasses with U.sup.6+-doping by taking the above mixtures or the as synthesized powders and firing them at 1200? C. in air until melted. These materials readily form glasses and can just be slow cooled. FIG. 8 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrBPO.sub.5 glass. FIG. 9 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaBPO.sub.5 glass.

    Example 4: Preparation of U.SUP.6+.-doped MgAlPO.SUB.5

    [0152] A 3-gram sample of 1% U.sup.6+-doped MgAlPO.sub.5 was synthesized using 0.7281 g of MgO, 0.0493 g of UO.sub.2, and 2.2254 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1200? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1300? C. in air for 5 hrs. FIG. 10 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped MgAlPO.sub.5.

    Example 5: Preparation of U.SUP.6+.-doped Li.SUB.2.BaP.SUB.2.O.SUB.7

    [0153] A 3-gram sample of 1% U.sup.6+-doped Li.sub.2BaP.sub.2O.sub.7 was synthesized using 0.7100 g of Li.sub.3PO.sub.4, 0.0248 g of UO.sub.2, 2.1245 g of BaHPO.sub.4 and 0.4251 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. in air for 5 hrs with ball milling in between firing. FIG. 11 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Li.sub.2BaP.sub.2O.sub.7.

    Example 6: Preparation of U.SUP.6+.-doped Ca.SUB.2.V.SUB.2.O.SUB.7

    [0154] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.2V.sub.2O.sub.7 was synthesized using 1.9951 g of CaCO.sub.3, 0.0549 g of UO.sub.2, and 2.3554 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 600? C. and finally 700? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 12 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.2V.sub.2O.sub.7.

    Example 7: Preparation of U.SUP.6+.-doped Ba.SUB.2.V.SUB.2.O.SUB.7

    [0155] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.2V.sub.2O.sub.7 was synthesized using 2.3897 g of BaCO.sub.3, 0.0330 g of UO.sub.2, and 1.4308 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. Then fired at 600? C. and finally 900? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 13 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.2V.sub.2O.sub.7.

    Example 8: Preparation of U.SUP.6+.-doped CaMgV.SUB.2.O.SUB.7

    [0156] A 3-gram sample of 1% U.sup.6+-doped CaMgV.sub.2O.sub.7 was synthesized using 1.0608 g of CaCO.sub.3, 0.0289 g of UO.sub.2, 0.4314 g of MgO, and 2.5045 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 700? C. and finally 750? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 14 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped CaMgV.sub.2O.sub.7.

    Example 9: Preparation of U.SUP.6+.-doped SrMgV.SUB.2.O.SUB.7

    [0157] A 3-gram sample of 1% U.sup.6+-doped SrMgV.sub.2O.sub.7 was synthesized using 1.3396 g of SrCO.sub.3, 0.0248 g of UO.sub.2, 0.3694 g of MgO, and 2.1994 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 700? C. for 5 hrs, with 2 hrs mill times in between firings. FIG. 15 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrMgV.sub.2O.sub.7.

    Example 10: Preparation of U.SUP.6+.-doped CaF.SUB.2

    [0158] A 3-gram sample of 1% U.sup.6+-doped CaF.sub.2 was synthesized using 2.8964 g of CaF.sub.2, 0.1012 g of UO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. FIG. 16 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped CaF.sub.2.

    Example 11: Preparation of U.SUP.6+.-doped BaF.SUB.2

    [0159] A 3-gram sample of 1% U.sup.6+-doped BaF.sub.2 was synthesized using 2.9531 g of BaF.sub.2, 0.0459 g of UO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 810? C. in air for 5 hrs. FIG. 17 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaF.sub.2.

    Example 12: Preparation of U.SUP.6+.-doped BaFCl

    [0160] A 3-gram sample of 1% U.sup.6+-doped BaFCI was synthesized using 1.3647 g of BaF.sub.2, 0.0420 g of UO.sub.2, 0.8759 g of NH.sub.4Cl, 1.5048 g of BaCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 810? C. in air for 5 hrs. FIG. 18 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaFCl.

    Example 13: Preparation of U.SUP.6+.-doped BaFBr

    [0161] A 3-gram sample of 1% U.sup.6+-doped BaFBr was synthesized using 1.1086 g of BaF.sub.2, 0.0341 g of UO.sub.2, 1.3004 g of NH.sub.4Br, 1.2228 g of BaCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 810? C. in air for 5 hrs. FIG. 19 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaFBr.

    Example 14: Preparation of U.SUP.6+.-doped CaAl.SUB.2.B.SUB.2.O.SUB.7

    [0162] A 3-gram sample of 1% U.sup.6+-doped CaAl.sub.2B.sub.2O.sub.7 was synthesized using 1.2945 g of CaCO.sub.3, 0.0353 g of UO.sub.2, 1.3320 g of Al.sub.2O.sub.3, 0.9095 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 600? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. in air for 5 hrs. FIG. 20 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped CaAl.sub.2B.sub.2O.sub.7.

    Example 15: Preparation of U.SUP.6+.-doped SrAl.SUB.2.B.SUB.2.O.SUB.7

    [0163] A 3-gram sample of 1% U.sup.6+-doped SrAl.sub.2B.sub.2O.sub.7 was synthesized using 1.5846 g of SrCO.sub.3, 0.0293 g of UO.sub.2, 1.1054 g of Al.sub.2O.sub.3, 0.7548 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 600? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. in air for 5 hrs. FIG. 21 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrAl.sub.2B.sub.2O.sub.7.

    Example 16: Preparation of U.SUP.6+.-doped BaAl.SUB.2.B.SUB.2.O.SUB.7

    [0164] A 3-gram sample of 1% U.sup.6+-doped BaAl.sub.2B.sub.2O.sub.7 was synthesized using 1.7984 g of BaCO.sub.3, 0.0249 g of UO.sub.2, 0.9385 g of Al.sub.2O.sub.3, 0.6408 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 600? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. in air for 5 hrs. FIG. 22 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaAl.sub.2B.sub.2O.sub.7.

    Example 17: Preparation of U.SUP.6+.-doped CaB.SUB.4.O.SUB.7

    [0165] A 3-gram sample of 1% U.sup.6+-doped CaB.sub.4O.sub.7 was synthesized using 1.0567 g of CaCO.sub.3, 0.0411 g of UO.sub.2, 2.1172 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 500? C. in air for 5 hrs. Then blended for a third time for 2 hrs and fired at 600? C. for 5 hrs in air. FIG. 23 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped CaB.sub.4O.sub.7.

    Example 18: Preparation of U.SUP.6+.-doped SrB.SUB.4.O.SUB.7

    [0166] A 3-gram sample of 1% U.sup.6+-doped SrB.sub.4O.sub.7 was synthesized using 1.7943 g of SrCO.sub.3, 0.0332 g of UO.sub.2, 1.7094 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 500? C. in air for 5 hrs. Then blended for a third time for 2 hrs and fired at 600? C. for 5 hrs in air. FIG. 24 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrB.sub.4O.sub.7.

    Example 19: Preparation of U.SUP.6+.-doped SrAl.SUB.3.BO.SUB.7

    [0167] A 3-gram sample of 1% U.sup.6+-doped SrAl.sub.3BO.sub.7 was synthesized using 1.4771 g of SrCO.sub.3, 0.0276 g of UO.sub.2, 1.5606 g of Al.sub.2O.sub.3, 0.3566 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. Then fired at 500? C., 800? C. and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 25 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrAl.sub.3BO.sub.7.

    Example 20: Preparation of U.SUP.6+.-doped CaAlB.SUB.3.O.SUB.7

    [0168] A 3-gram sample of 1% U.sup.6+-doped CaAlB.sub.3O.sub.7 was synthesized using 1.3926 g of CaCO.sub.3, 0.0379 g of UO.sub.2, 0.7165 g of Al.sub.2O.sub.3, 1.4676 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. Then fired at 500? C. and finally 800? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 26 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped CaAlB.sub.3O.sub.7.

    Example 21: Preparation of U.SUP.6+.-doped Ca.SUB.3.B.SUB.2.O.SUB.6

    [0169] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.3B.sub.2O.sub.6 was synthesized using 3.6581 g of CaCO.sub.3, 0.0999 g of UO.sub.2, and 0.8567 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 27 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.3B.sub.2O.sub.6.

    Example 22: Preparation of U.SUP.6+.-doped Sr.SUB.3.B.SUB.2.O.SUB.6

    [0170] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3B.sub.2O.sub.6 was synthesized using 3.4167 g of SrCO.sub.3, 0.0631 g of UO.sub.2, and 0.5425 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 28 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3B.sub.2O.sub.6.

    Example 23: Preparation of U.SUP.6+.-doped Ba.SUB.3.B.SUB.2.O.SUB.6

    [0171] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.3B.sub.2O.sub.6 was synthesized using 3.3013 g of BaCO.sub.3, 0.0456 g of UO.sub.2, and 0.3921 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 29 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.3B.sub.2O.sub.6.

    Example 24: Preparation of U.SUP.6+.-doped Sr.SUB.3.Al.SUB.2.O.SUB.6

    [0172] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3Al.sub.2O.sub.6 was synthesized using 3.1519 g of SrCO.sub.3, 0.0582 g of UO.sub.2, and 0.7329 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 30 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3Al.sub.2O.sub.6.

    Example 25: Preparation of U.SUP.6+.-doped Ca.SUB.3.Al.SUB.2.O.SUB.6

    [0173] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.3Al.sub.2O.sub.6 was synthesized using 3.4283 g of CaCO.sub.3, 0.0934 g of UO.sub.2, and 1.1759 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 31 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.3Al.sub.2O.sub.6.

    Example 26: Preparation of U.SUP.6+.-doped Ba.SUB.2.SrAl.SUB.2.O.SUB.6

    [0174] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.2SrAl.sub.2O.sub.6 was synthesized using 2.2687 g of BaCO.sub.3, 0.8485 g of SrCO.sub.3, 0.0470 g of UO.sub.2, and 0.5920 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 32 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.2SrAl.sub.2O.sub.6.

    Example 27: Preparation of U.SUP.6+.-doped BaSr.SUB.2.Al.SUB.2.O.SUB.6

    [0175] A 3-gram sample of 1% U.sup.6+-doped BaSr.sub.2Al.sub.2O.sub.6 was synthesized using 1.2537 g of BaCO.sub.3, 1.8758 g of SrCO.sub.3, 0.0520 g of UO.sub.2, and 0.6543 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 33 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaSr.sub.2Al.sub.2O.sub.6.

    Example 28: Preparation of U.SUP.6+.-doped Ba.SUB.2.SrB.SUB.2.O.SUB.6

    [0176] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.2SrB.sub.2O.sub.6 was synthesized using 2.4201 g of BaCO.sub.3, 0.9052 g of SrCO.sub.3, 0.0502 g of UO.sub.2, and 0.4312 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 34 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.2SrB.sub.2O.sub.6.

    Example 29: Preparation of U.SUP.6+.-doped BaSr.SUB.2.B.SUB.2.O.SUB.6

    [0177] A 3-gram sample of 1% U.sup.6+-doped BaSr.sub.2B.sub.2O.sub.6 was synthesized using 1.3469 g of BaCO.sub.3, 2.0152 g of SrCO.sub.3, 0.0558 g of UO.sub.2, and 0.4800 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 35 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaSr.sub.2B.sub.2O.sub.6.

    Example 30: Preparation of U.SUP.6+.-doped Ca.SUB.3.In.SUB.2.O.SUB.6

    [0178] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.3In.sub.2O.sub.6 was synthesized using 1.9738 g of CaCO.sub.3, 0.0538 g of UO.sub.2, and 1.8435 g of In.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 36 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.3In.sub.2O.sub.6.

    Example 31: Preparation of U.SUP.6+.-doped Sr.SUB.3.In.SUB.2.O.SUB.6

    [0179] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3In.sub.2O.sub.6 was synthesized using 2.2182 g of SrCO.sub.3, 0.0410 g of UO.sub.2, and 1.4046 g of In.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 37 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3In.sub.2O.sub.6.

    Example 32: Preparation of U.SUP.6+.-doped SrB.SUB.6.O.SUB.10

    [0180] A 3-gram sample of 1% U.sup.6+-doped SrB.sub.6O.sub.10 was synthesized using 1.3964 g of SrCO.sub.3, 0.0258 g of UO.sub.2, and 1.9956 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 500? C. in air for 5 hrs. Then blended for a third time for 2 hrs and fired at 600? C. for 5 hrs in air. FIG. 38 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrB.sub.6O.sub.10.

    Example 33: Preparation of U.SUP.6+.-doped Sr.SUB.4.P.SUB.2.O.SUB.9

    [0181] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.4P.sub.2O.sub.9 was synthesized using 1.9586 g of SrHPO.sub.4, 0.0576 g of UO.sub.2, and 1.5434 g of SrCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 39 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.4P.sub.2O.sub.9.

    Example 34: Preparation of U.SUP.6+.-doped Ca.SUB.4.P.SUB.2.O.SUB.9

    [0182] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.4P.sub.2O.sub.9 was synthesized using 2.1818 g of CaHPO.sub.4, 0.0866 g of UO.sub.2, and 1.5729 g of CaCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 40 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.4P.sub.2O.sub.9.

    Example 35: Preparation of U.SUP.6+.-doped Ba.SUB.3.P.SUB.4.O.SUB.13

    [0183] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.3P.sub.4O.sub.13 was synthesized using 2.7832 g of BaHPO.sub.4, 0.0325 g of UO.sub.2, and 0.5463 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 150? C. in air for 5 hrs. Then fired at 300? C., 500? C., 700? C. and finally 800? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 41 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.3P.sub.4O.sub.13.

    Example 36: Preparation of U.SUP.6+.-doped Sr.SUB.3.P.SUB.4.O.SUB.13

    [0184] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3P.sub.4O.sub.13 was synthesized using 2.7298 g of SrHPO.sub.4, 0.0406 g of UO.sub.2, and 0.6809 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 150? C. in air for 5 hrs. Then fired at 300? C., 500? C., 700? C. and finally 875? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 42 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3P.sub.4O.sub.13.

    Example 37: Preparation of U.SUP.6+.-doped LiBaF.SUB.3

    [0185] A 3-gram sample of 1% U.sup.6+-doped LiBaF.sub.3 was synthesized using 2.5744 g of BaF.sub.2, 0.0400 g of UO.sub.2 and 0.3847 g of LiF. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 810? C. in air for 5 hrs. FIG. 43 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped LiBaF.sub.3.

    Example 38: Preparation of U.SUP.6+.-doped BaMgF.SUB.4

    [0186] A 3-gram sample of 1% U.sup.6+-doped BaMgF.sub.4 was synthesized using 2.1821 g of BaF.sub.2, 0.0439 g of UO.sub.2 and 0.7832 g of MgF.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 810? C. in air for 5 hrs. FIG. 44 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaMgF.sub.4.

    Example 39: Preparation of U.SUP.6+.-doped Sr.SUB.4.AlPO.SUB.8

    [0187] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.4AlPO.sub.8 was synthesized using 3.2332 g of SrCO.sub.3, 0.0597 g of UO.sub.2, and 0.6744 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 45 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.4AlPO.sub.8.

    Example 40: Preparation of U.SUP.6+.-doped Ba.SUB.4.AlPO.SUB.8

    [0188] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.4AlPO.sub.8 was synthesized using 3.1713 g of BaCO.sub.3, 0.0438 g of UO.sub.2, and 0.4949 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 46 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.4AlPO.sub.8.

    Example 41: Preparation of U.SUP.6+.-doped Ca.SUB.4.AlPO.SUB.8

    [0189] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.4AlPO.sub.8 was synthesized using 3.3572 g of CaCO.sub.3, 0.0915 g of UO.sub.2, and 1.0329 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1200? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1300? C. in air for 5 hrs. FIG. 47 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.4AlPO.sub.8.

    Example 42: Preparation of U.SUP.6+.-doped Ba.SUB.3.SrAlPO.SUB.8

    [0190] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.3SrAlPO.sub.8 was synthesized using 2.5481 g of BaCO.sub.3, 0.6354 g of SrCO.sub.3, 0.0470 g of UO.sub.2, and 0.5302 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 48 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.3SrAlPO.sub.8.

    Example 43: Preparation of U.SUP.6+.-doped Ba.SUB.2.Sr.SUB.2.AlPO.SUB.8

    [0191] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.2Sr.sub.2AlPO.sub.8 was synthesized using 1.8292 g of BaCO.sub.3, 1.3683 g of SrCO.sub.3, 0.0506 g of UO.sub.2, and 0.5709 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 49 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.2Sr.sub.2AlPO.sub.8.

    Example 44: Preparation of U.SUP.6+.-doped BaSr.SUB.3.AlPO.SUB.8

    [0192] A 3-gram sample of 1% U.sup.6+-doped BaSr.sub.3AlPO.sub.8 was synthesized using 0.9907 g of BaCO.sub.3, 2.2232 g of SrCO.sub.3, 0.0548 g of UO.sub.2, and 0.6183 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 50 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaSr.sub.3AlPO.sub.8.

    Example 45: Preparation of U.SUP.6+.-doped Ba.SUB.6.Al.SUB.5.P.SUB.5.O.SUB.26

    [0193] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.6Al.sub.5P.sub.5O.sub.26 was synthesized using 2.2899 g of BaCO.sub.3, 0.0316 g of UO.sub.2, and 1.1911 g of AlPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 51 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.6Al.sub.5P.sub.5O.sub.26.

    Example 46: Preparation of U.SUP.6+.-doped Ba.SUB.6.Ga.SUB.5.P.SUB.5.O.SUB.26

    [0194] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.6Ga.sub.5P.sub.5O.sub.26 was synthesized using 2.0102 g of BaCO.sub.3, 0.0278 g of UO.sub.2, and 0.8035 g of Ga.sub.2O.sub.3 and 1.1549 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. Then fired at 500? C., 800? C. and finally 1100? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 52 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.6Ga.sub.5P.sub.5O.sub.26.

    Example 47: Preparation of U.SUP.6+.-doped Ba.SUB.6.In.SUB.5.P.SUB.5.O.SUB.26

    [0195] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.6In.sub.5P.sub.5O.sub.26 was synthesized using 1.7807 g of BaCO.sub.3, 0.0246 g of UO.sub.2, and 1.0543 g of In.sub.2O.sub.3 and 1.0231 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. Then fired at 500? C., 800? C. and finally 1100? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 53 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.6In.sub.5P.sub.5O.sub.26.

    Example 48: Preparation of U.SUP.6+.-doped Ba.SUB.6.Al.SUB.5.V.SUB.5.O.SUB.26

    [0196] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.6Al.sub.5V.sub.5O.sub.26 was synthesized using 2.1501 g of BaCO.sub.3, 0.0297 g of UO.sub.2, 1.0728 g of NH.sub.4VO.sub.3 and 0.4625 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 900? C. and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 54 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.6Al.sub.5V.sub.5O.sub.26.

    Example 49: Preparation of U.SUP.6+.-doped Ba.SUB.6.Ga.SUB.5.V.SUB.5.O.SUB.26

    [0197] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.6Ga.sub.5V.sub.5O.sub.26 was synthesized using 1.9017 g of BaCO.sub.3, 0.0263 g of UO.sub.2, 0.9488 g of NH.sub.4VO.sub.3 and 0.7602 g of Ga.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 900? C. and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 55 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.6Ga.sub.5V.sub.5O.sub.26.

    Example 50: Preparation of U.SUP.6+.-doped Ba.SUB.6.In.SUB.5.V.SUB.5.O.SUB.26

    [0198] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.6In.sub.5V.sub.5O.sub.26 was synthesized using 1.6950 g of BaCO.sub.3, 0.0234 g of UO.sub.2, 0.8457 g of NH.sub.4VO.sub.3 and 1.0036 g of In.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 900? C. and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 56 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.6In.sub.5V.sub.5O.sub.26.

    Example 51: Preparation of U.SUP.6+.-doped SrAl.SUB.2.O.SUB.4

    [0199] A 3-gram sample of 1% U.sup.6+-doped SrAl.sub.2O.sub.4 was synthesized using 2.1140 g of SrCO.sub.3, 0.0391 g of UO.sub.2, and 1.4748 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. Then blended for a third time for 2 hrs and fired at 1300? C. for 5 hrs in air. FIG. 57 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrAl.sub.2O.sub.4.

    Example 52: Preparation of U.SUP.6+.-doped SrAIBO.SUB.4

    [0200] A 3-gram sample of 1% U.sup.6+-doped SrAIBO.sub.4 was synthesized using 2.2966 g of SrCO.sub.3, 0.0424 g of UO.sub.2, 0.5470 g of B.sub.2O.sub.3 and 0.8011 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300 C in air for 5 hrs. Then fired at 500? C., 800? C. and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 58 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrAlBO.sub.4.

    Example 53: Preparation of U.SUP.6+.-doped Ca.SUB.2.SiO.SUB.4

    [0201] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.2SiO.sub.4 was synthesized using 3.3742 g of CaCO.sub.3, 0.0920 g of UO.sub.2, and 1.0784 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1200? C. in air for 5 hrs. FIG. 59 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.2SiO.sub.4.

    Example 54: Preparation of U.SUP.6+.-doped Mg.SUB.2.SiO.SUB.4

    [0202] A 3-gram sample of 1% U.sup.6+-doped Mg.sub.2SiO.sub.4 was synthesized using 1.6513 g of MgO, 0.1117 g of UO.sub.2, and 1.3107 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. FIG. 60 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Mg.sub.2SiO.sub.4.

    Example 55: Preparation of U.SUP.6+.-doped Ca.SUB.2.GeO.SUB.4

    [0203] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.2GeO.sub.4 was synthesized using 2.6938 g of CaCO.sub.3, 0.0734 g of UO.sub.2, and 1.4217 g of GeO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1000? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 61 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.2GeO.sub.4.

    Example 56: Preparation of U.SUP.6+.-doped Sr.SUB.2.GeO.SUB.4

    [0204] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.2GeO.sub.4 was synthesized using 2.7853 g of SrCO.sub.3, 0.0515 g of UO.sub.2, and 0.9966 g of GeO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1000? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 62 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.2GeO.sub.4.

    Example 57: Preparation of U.SUP.6+.-doped Sr.SUB.3.SiO.SUB.5

    [0205] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3SiO.sub.5 was synthesized using 3.5034 g of SrCO.sub.3, 0.0647 g of UO.sub.2, and 0.5061 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 63 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3SiO.sub.5.

    Example 58: Preparation of U.SUP.6+.-doped Ca.SUB.3.SiO.SUB.5

    [0206] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.3SiO.sub.5 was synthesized using 3.8070 g of CaCO.sub.3, 0.1037 g of UO.sub.2, and 0.8111 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 64 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.3SiO.sub.5.

    Example 59: Preparation of U.SUP.6+.-doped Sr.SUB.4.Al.SUB.2.O.SUB.7

    [0207] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.4Al.sub.2O.sub.7 was synthesized using 3.3569 g of SrCO.sub.3, 0.0620 g of UO.sub.2, and 0.5855 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 65 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.4Al.sub.2O.sub.7.

    Example 60: Preparation of U.SUP.6+.-doped Ca.SUB.4.Al.SUB.2.O.SUB.7

    [0208] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.4Al.sub.2O.sub.7 was synthesized using 3.5581 g of CaCO.sub.3, 0.0970 g of UO.sub.2, and 0.9153 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 66 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.4Al.sub.2O.sub.7.

    Example 61: Preparation of U.SUP.6+.-doped Ca.SUB.3.Si.SUB.2.O.SUB.7

    [0209] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.3Si.sub.2O.sub.7 was synthesized using 3.0298 g of CaCO.sub.3, 0.0826 g of UO.sub.2, and 1.2911 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 67 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.3Si.sub.2O.sub.7.

    Example 62: Preparation of U.SUP.6+.-doped Ca.SUB.12.Al.SUB.14.O.SUB.33

    [0210] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.12Al.sub.14O.sub.33 was synthesized using 2.5292 g of CaCO.sub.3, 0.0689 g of UO.sub.2, and 1.5181 g of Al.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1200? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1300? C. in air for 5 hrs. FIG. 68 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.12Al.sub.14O.sub.33.

    Example 63: Preparation of U.SUP.6+.-doped MgSiO.SUB.3

    [0211] A 3-gram sample of 1% U.sup.6+-doped MgSiO.sub.3 was synthesized using 1.1624 g of MgO, 0.0790 g of UO.sub.2, and 1.8532 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1000? C. in air for 5 hrs. FIG. 69 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped MgSiO.sub.3.

    Example 64: Preparation of U.SUP.6+.-doped BaGeO.SUB.3

    [0212] A 3-gram sample of 1% U.sup.6+-doped BaGeO.sub.3 was synthesized using 2.2637 g of BaCO.sub.3, 0.0313 g of UO.sub.2, and 1.2118 g of GeO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1000? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 70 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaGeO.sub.3.

    Example 65: Preparation of U.SUP.6+.-doped Mg.SUB.3.P.SUB.2.O.SUB.8

    [0213] A 3-gram sample of 1% U.sup.6+-doped Mg.sub.3P.sub.2O.sub.8 was synthesized using 1.3335 g of MgO, 0.0903 g of UO.sub.2, and 3.0902 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. Then fired at 500? C., 700? C., 850? C. and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 71 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Mg.sub.3P.sub.2O.sub.8.

    Example 66: Preparation of U.SUP.6+.-doped Ca.SUB.3.V.SUB.2.O.SUB.8

    [0214] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.3V.sub.2O.sub.8 was synthesized using 2.4980 g of CaCO.sub.3, 0.0681 g of UO.sub.2, and 1.9659 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 250? C. in air for 5 hrs. Then fired at 600? C., and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 72 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.3V.sub.2O.sub.8.

    Example 67: Preparation of U.SUP.6+.-doped Ba.SUB.3.V.SUB.2.O.SUB.8

    [0215] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.3V.sub.2O.sub.8 was synthesized using 2.7226 g of BaCO.sub.3, 0.0376 g of UO.sub.2, and 1.0868 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 250 C in air for 5 hrs. Then fired at 600? C., and finally 1000? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 73 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.3V.sub.2O.sub.8.

    Example 68: Preparation of U.SUP.6+.-doped BaMg.SUB.2.V.SUB.2.O.SUB.8

    [0216] A 3-gram sample of 1% U.sup.6+-doped BaMg.sub.2V.sub.2O.sub.8 was synthesized using 1.4062 g of BaCO.sub.3, 0.0194 g of UO.sub.2, 0.5801 g of MgO, and 1.6839 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. Then fired at 600? C., and finally 900? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 74 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaMg.sub.2V.sub.2O.sub.8.

    Example 69: Preparation of U.SUP.6+.-doped BaAl.SUB.2.Si.SUB.2.O.SUB.8

    [0217] A 3-gram sample of 1% U.sup.6+-doped BaAl.sub.2Si.sub.2O.sub.8 was synthesized using 1.5569 g of BaCO.sub.3, 0.0215 g of UO.sub.2, 0.8125 g of Al.sub.2O.sub.3 and 1.0094 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 75 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaAl.sub.2Si.sub.2O.sub.8.

    Example 70: Preparation of U.SUP.6+.-doped SrAl.SUB.2.Si.SUB.2.O.SUB.8

    [0218] A 3-gram sample of 1% U.sup.6+-doped SrAl.sub.2Si.sub.2O.sub.8 was synthesized using 1.3398 g of SrCO.sub.3, 0.0248 g of UO.sub.2, 0.9347 g of Al.sub.2O.sub.3 and 1.1612 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 76 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrAl.sub.2Si.sub.2O.sub.8.

    Example 71: Preparation of U.SUP.6+.-doped CaAl.SUB.2.Si.SUB.2.O.SUB.8

    [0219] A 3-gram sample of 1% U.sup.6+-doped CaAl.sub.2Si.sub.2O.sub.8 was synthesized using 1.0609 g of CaCO.sub.3, 0.0289 g of UO.sub.2, 1.0917 g of Al.sub.2O.sub.3 and 1.3563 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 77 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped CaAl.sub.2Si.sub.2O.sub.8.

    Example 72: Preparation of U.SUP.6+.-doped BaGa.SUB.2.Si.SUB.2.O.SUB.8

    [0220] A 3-gram sample of 1% U.sup.6+-doped BaGa.sub.2Si.sub.2O.sub.8 was synthesized using 1.2688 g of BaCO.sub.3, 0.0175 g of UO.sub.2, 1.2173 g of Ga.sub.2O.sub.3 and 0.8226 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 78 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaGa.sub.2Si.sub.2O.sub.8.

    Example 73: Preparation of U.SUP.6+.-doped Ca.SUB.2.Al.SUB.2.SiO.SUB.7

    [0221] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.2Al.sub.2SiO.sub.7 was synthesized using 1.8315 g of CaCO.sub.3, 0.0499 g of UO.sub.2, 0.9423 g of Al.sub.2O.sub.3 and 0.5853 g of SiO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs. FIG. 79 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.2Al.sub.2SiO.sub.7.

    Example 74: Preparation of U.SUP.6+.-doped Ca.SUB.2.BO.SUB.3.C1

    [0222] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.2BO.sub.3C1 was synthesized using 3.3330 g of CaCO.sub.3, 0.0908 g of UO.sub.2, 0.9332 g of CaCl.sub.2, 0.5854 g of B.sub.2O.sub.3 and 0.0900 g of NH.sub.4Cl. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 850? C. in air for 5 hrs. FIG. 80 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.2BO.sub.3Cl.

    Example 75: Preparation of U.SUP.6+.-doped Ca.SUB.2.PO.SUB.4.Cl

    [0223] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.2PO.sub.4Cl was synthesized using 1.9026 g of CaHPO.sub.4, 0.0755 g of UO.sub.2, 0.7759 g of CaCl.sub.2, 0.6718 g of CaCO.sub.3 and 0.0748 g of NH.sub.4Cl. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 850? C. and 900? C. in air for 5 hrs with ball milling in between firing. FIG. 81 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.2PO.sub.4Cl.

    Example 76: Preparation of U.SUP.6+.-doped Ca.SUB.5.(PO.SUB.4.).SUB.3.Cl

    [0224] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.5(PO.sub.4).sub.3C1 was synthesized using 2.3076 g of CaHPO.sub.4, 0.0763 g of UO.sub.2, 0.3137 g of CaCl.sub.2, 0.8205 g of CaCO.sub.3 and 0.0302 g of NH.sub.4Cl. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 850? C. and 900? C. in air for 5 hrs with ball milling in between firing. FIG. 82 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.5(PO.sub.4).sub.3Cl.

    Example 77: Preparation of U.SUP.6+.-doped Ba.SUB.5.(VO.SUB.4.).SUB.3.Cl

    [0225] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.5(VO.sub.4).sub.3C1 was synthesized using 2.4578 g of BaCO.sub.3, 0.2914 g of BaCl.sub.2, 0.0378 g of UO.sub.2, and 0.9821 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. and 900? C. in air for 5 hrs with ball milling in between firing. FIG. 83 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.5(VO.sub.4).sub.3Cl.

    Example 78: Preparation of U.SUP.6+.-doped SrO

    [0226] A 3-gram sample of 1% U.sup.6+-doped SrO was synthesized using 4.1709 g of SrCO.sub.3, 0.0770 g of UO.sub.2. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. FIG. 84 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped SrO.

    Example 79: Preparation of U.SUP.6+.-doped Cs.SUB.2.CaP.SUB.2.O.SUB.7

    [0227] A 3-gram sample of 1% U.sup.6+-doped Cs.sub.2CaP.sub.2O.sub.7 was synthesized using 2.0287 g of Cs.sub.2CO.sub.3, 0.0168 g of UO.sub.2, 0.6170 g of CaCO.sub.3 and 1.6445 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 250? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. and 700? C. in air for 5 hrs with ball milling in between firing. FIG. 85 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Cs.sub.2CaP.sub.2O.sub.7.

    Example 80: Preparation of U.SUP.6+.-doped Cs.SUB.2.SrP.SUB.2.O.SUB.7

    [0228] A 3-gram sample of 1% U.sup.6+-doped Cs.sub.2SrP.sub.2O.sub.7 was synthesized using 1.8482 g of Cs.sub.2CO.sub.3, 0.0153 g of UO.sub.2, 0.8290 g of CaCO.sub.3 and 1.4982 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 250? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. and 700? C. in air for 5 hrs with ball milling in between firing. FIG. 86 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Cs.sub.2SrP.sub.2O.sub.7.

    Example 81: Preparation of U.SUP.6+.-doped Cs.SUB.2.CaV.SUB.2.O.SUB.7

    [0229] A 3-gram sample of 1% U.sup.6+-doped Cs.sub.2CaV.sub.2O.sub.7 was synthesized using 1.8734 g of Cs.sub.2CO.sub.3, 0.0155 g of UO.sub.2, 0.5698 g of CaCO.sub.3 and 1.3452 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 250? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. in air for 5 hrs. FIG. 87 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Cs.sub.2CaV.sub.2O.sub.7.

    Example 82: Preparation of U.SUP.6+.-doped Cs.SUB.2.SrV.SUB.2.O.SUB.7

    [0230] A 3-gram sample of 1% U.sup.6+-doped Cs.sub.2SrV.sub.2O.sub.7 was synthesized using 1.7184 g of Cs.sub.2CO.sub.3, 0.0142 g of UO.sub.2, 0.7708 g of SrCO.sub.3 and 1.2339 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 250? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. in air for 5 hrs. FIG. 88 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Cs.sub.2SrV.sub.2O.sub.7.

    Example 83: Preparation of U.SUP.6+.-doped NaCaPO.SUB.4

    [0231] A 3-gram sample of 1% U.sup.6+-doped NaCaPO.sub.4 was synthesized using 1.3309 g of Na.sub.2HPO.sub.4, 0.0506 g of UO.sub.2, 0.9195 g of CaCO.sub.3 and 1.2754 g of CaHPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 600? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. and 900? C. in air for 5 hrs with ball milling in between firing. FIG. 89 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped NaCaPO.sub.4.

    Example 84: Preparation of U.SUP.6+.-doped LiSrPO.SUB.4

    [0232] A 3-gram sample of 1% U.sup.6+-doped LiSrPO.sub.4 was synthesized using 0.6061 g of Li.sub.3PO.sub.4, 0.0424 g of UO.sub.2, 0.7488 g of SrCO.sub.3 and 1.9221 g of SrHPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 600? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. in air for 5 hrs. FIG. 90 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped LiSrPO.sub.4.

    Example 85: Preparation of U.SUP.6+.-doped NaSrPO.SUB.4

    [0233] A 3-gram sample of 1% U.sup.6+-doped NaSrPO.sub.4 was synthesized using 1.0284 g of Na.sub.2HPO.sub.4, 0.0391 g of UO.sub.2, 1.0480 g of SrCO.sub.3 and 1.3299 g of SrHPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 600? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. and 900? C. in air for 5 hrs with ball milling in between firing. FIG. 91 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped NaSrPO.sub.4.

    Example 86: Preparation of U.SUP.6+.-doped KSrPO.SUB.4

    [0234] A 3-gram sample of 1% U.sup.6+-doped KSrPO.sub.4 was synthesized using 1.1706 g of K.sub.2HPO.sub.4, 0.0363 g of UO.sub.2, 0.9723 g of SrCO.sub.3 and 1.2339 g of SrHPO.sub.4. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 600? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. and 900? C. in air for 5 hrs with ball milling in between firing. FIG. 92 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped KSrPO.sub.4.

    Example 87: Preparation of U.SUP.6+.-doped KBaVO.SUB.4

    [0235] A 3-gram sample of 1% U.sup.6+-doped KBaVO.sub.4 was synthesized using 0.7091 g of K.sub.2CO.sub.3, 0.0277 g of UO.sub.2, 2.0047 g of BaCO.sub.3 and 1.2003 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 300? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. and 900? C. in air for 5 hrs with ball milling in between firing. FIG. 93 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped KBaVO.sub.4.

    Example 88: Preparation of U.SUP.6+.-doped KSrVO.SUB.4

    [0236] A 3-gram sample of 1% U.sup.6+-doped KSrVO.sub.4 was synthesized using 0.8526 g of K.sub.2CO.sub.3, 0.0333 g of UO.sub.2, 1.8032 g of SrCO.sub.3 and 1.4432 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. in air for 5 hrs with ball milling in between firing. FIG. 94 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped KSrVO.sub.4.

    Example 89: Preparation of U.SUP.6+.-doped KCaVO.SUB.4

    [0237] A 3-gram sample of 1% U.sup.6+-doped KCaVO.sub.4 was synthesized using 1.0572 g of K.sub.2CO.sub.3, 0.0413 g of UO.sub.2, 1.5159 g of CaCO.sub.3 and 1.7896 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 800? C. in air for 5 hrs with ball milling in between firing. FIG. 95 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped KCaVO.sub.4.

    Example 90: Preparation of U.SUP.6+.-doped BaP.SUB.2.O.SUB.6

    [0238] A 3-gram sample of 1% U.sup.6+-doped BaP.sub.2O.sub.6 was synthesized using 2.3388 g of BaHPO.sub.4, 0.0273 g of UO.sub.2, and 1.3505 g of DAP. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 150? C. in air for 5 hrs. Then fired at 300? C., 500? C., 700? C. and finally 800? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 96 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped BaP.sub.2O.sub.6.

    Example 91: Preparation of U.SUP.6+.-doped CaV.SUB.2.O.SUB.6

    [0239] A 3-gram sample of 1% U.sup.6+-doped CaV.sub.2O.sub.6 was synthesized using 1.2389 g of CaCO.sub.3, 0.0378 g of UO.sub.2, and 2.9253 g of NH.sub.4VO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 600? C. and finally 700? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 97 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped CaV.sub.2O.

    Example 92: Preparation of U.SUP.6+.-doped Sr.SUB.5.(BO.SUB.3.).SUB.3.Cl

    [0240] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.5(BO.sub.3).sub.3Cl was synthesized using 2.9975 g of SrCO.sub.3, 0.0616 g of UO.sub.2, 0.3617 g of SrCl.sub.2, 0.4765 g of B.sub.2O.sub.3 and 0.0244 g of NH.sub.4Cl. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 800? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 850? C. in air for 5 hrs. FIG. 98 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.5(BO.sub.3).sub.3Cl.

    Example 93: Preparation of U.SUP.6+.-doped LiSrBO.SUB.3

    [0241] A 3-gram sample of 1% U.sup.6+-doped LiSrBO.sub.3 was synthesized using 0.9637 g of LiBO.sub.2, 0.0523 g of UO.sub.2, and 2.8310 g of SrCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 700? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 750? C. in air for 5 hrs with ball milling in between firing. FIG. 99 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped LiSrBO.sub.3.

    Example 94: Preparation of U.SUP.6+.-doped LiCaBO.SUB.3

    [0242] A 3-gram sample of 1% U.sup.6+-doped LiCaBO.sub.3 was synthesized using 1.3844 g of LiBO.sub.2, 0.0751 g of UO.sub.2, and 2.7574 g of CaCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 700? C. in air for 5 hrs. FIG. 100 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped LiCaBO.sub.3.

    Example 95: Preparation of U.SUP.6+.-doped Sr.SUB.3.GeO.SUB.4.F

    [0243] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3GeO.sub.4F was synthesized using 0.4455 g of SrF.sub.2, 0.0192 g of UO.sub.2, 0.7418 g of GeO.sub.2 and 2.5863 g of SrCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1000? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1050? C. in air for 5 hrs with ball milling in between firing. FIG. 101 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3GeO.sub.4F.

    Example 96: Preparation of U.SUP.6+.-doped Ba.SUB.3.BPO.SUB.7

    [0244] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.3BPO.sub.7 was synthesized using 0.5579 g of BPO.sub.4, 0.0427 g of UO.sub.2, and 3.0914 g of BaCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs with ball milling in between firing. FIG. 102 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.3BPO.sub.7.

    Example 97: Preparation of U.SUP.6+.-doped Sr.SUB.3.BPO.SUB.7

    [0245] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3BPO.sub.7 was synthesized using 0.7535 g of BPO.sub.4, 0.0577 g of UO.sub.2, and 3.1233 g of SrCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 1100? C. in air for 5 hrs with ball milling in between firing. FIG. 103 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3BPO.sub.7.

    Example 98: Preparation of U.SUP.6+.-doped Ba.SUB.3.B.SUB.6.Si.SUB.2.O.SUB.16

    [0246] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.3B.sub.6Si.sub.2O.sub.16 was synthesized using 0.4798 g of SiO.sub.2, 0.0307 g of UO.sub.2, and 2.7108 g of BaB.sub.2O.sub.4H.sub.2O. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 750? C. in air for 5 hrs. FIG. 104 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.3B.sub.6Si.sub.2O.sub.16.

    Example 99: Preparation of U.SUP.6+.-doped Sr.SUB.3.B.SUB.2.SiO.SUB.8

    [0247] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3B.sub.2SiO.sub.8 was synthesized using 0.4269 g of SiO.sub.2, 0.5162 g of B.sub.2O.sub.3 0.0546 g of UO.sub.2, and 2.9554 g of SrCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 900? C. and finally 1100? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 105 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3B.sub.2SiO.sub.8.

    Example 100: Preparation of U.SUP.6+.-doped Ca.SUB.11.B.SUB.2.Si.SUB.4.O.SUB.22

    [0248] A 3-gram sample of 1% U.sup.6+-doped Ca.sub.11B.sub.2Si.sub.4O.sub.22 was synthesized using 0.8012 g of SiO.sub.2, 0.2422 g of B.sub.2O.sub.3 0.0939 g of UO.sub.2, and 3.4472 g of CaCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. Then fired at 900? C. and finally 1100? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 106 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ca.sub.11B.sub.2Si.sub.4O.sub.22.

    Example 101: Preparation of U.SUP.6+.-doped Sr.SUB.3.Al.SUB.10.SiO.SUB.20

    [0249] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.3Al.sub.10SiO.sub.20 was synthesized using 0.2146 g of SiO.sub.2, 1.7276 g of Al.sub.2O.sub.3, 0.0275 g of UO.sub.2, and 1.4859 g of SrCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. Then fired at 1100? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 107 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.3Al.sub.10SiO.sub.20.

    Example 102: Preparation of U.SUP.6+.-doped Ba.SUB.6.5.Al.SUB.11.Si.SUB.5.O.SUB.33

    [0250] A 3-gram sample of 1% U.sup.6+-doped Ba.sub.6.5Al.sub.11Si.sub.5O.sub.33 was synthesized using 0.5096 g of SiO.sub.2, 0.9024 g of Al.sub.2O.sub.3, 0.0282 g of UO.sub.2, and 2.0435 g of BaCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. Then fired at 1100? C., for 5 hrs each, with 2 hrs mill times in between firings. FIG. 108 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Ba.sub.6.5Al.sub.11Si.sub.5O.sub.33.

    Example 103: Preparation of U.SUP.6+.-doped Sr.SUB.10.Ga.SUB.6.Sc.SUB.4.O.SUB.25

    [0251] A 3-gram sample of 1% U.sup.6+-doped Sr.sub.10Ga.sub.6Sc.sub.4O.sub.25 was synthesized using 0.8929 g of Ga.sub.2O.sub.3, 0.4380 g of Sc.sub.2O.sub.3, 0.0429 g of UO.sub.2, and 2.3207 g of SrCO.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 1100? C. in air for 5 hrs. Then fired at 1100? C., for 5 hrs each, with 2 hr mill times in between firings. FIG. 109 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped Sr.sub.10Ga.sub.6Sc.sub.4O.sub.25.

    Example 104: Preparation of U.SUP.6+.-doped LiBa.SUB.2.B.SUB.5.O.SUB.10

    [0252] A 3-gram sample of 1% U.sup.6+-doped LiBa.sub.2B.sub.5O.sub.10 was synthesized using 0.2999 g of LiBO.sub.2, 0.0625 g of UO.sub.2, and 2.8761 g of BaB.sub.2O.sub.4H.sub.2O. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. in air for 5 hrs with ball milling in between firing. FIG. 110 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped LiBa.sub.2B.sub.5O.sub.10.

    Example 105: Preparation of U.SUP.6+.-doped LiSr.SUB.4.B.SUB.3.O.SUB.9

    [0253] A 3-gram sample of 1% U.sup.6+-doped LiSr.sub.4B.sub.3O.sub.9 was synthesized using 0.4699 g of U.sub.2B.sub.4O.sub.7, 0.0600 g of UO.sub.2, 3.2487 g of SrCO.sub.3 and 0.1934 g of B.sub.2O.sub.3. The sample was ball milled for 2 hrs in a Nalgene bottle using YSZ media. The powder was then transferred to an alumina crucible and fired at 500? C. in air for 5 hrs. After firing the powder was again blended for 2 hrs and fired at 600? C. and 700? C. in air for 5 hrs with ball milling in between firing. FIG. 111 shows excitation spectrum (solid line graph) and emission spectrum (dotted line graph) of U.sup.6+-doped LiSr.sub.4B.sub.3O.sub.9.

    [0254] While only certain features of the disclosure have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the disclosure.