Provided is an aluminate fluorescent material having a high emission intensity and having a composition containing a first element that contains one or more of Ba and Sr, and a second element that contains Mg and Mn. In the composition, when a molar ratio of Al is 10, a total molar ratio of the first element is a parameter a, a total molar ratio of the second element is a parameter b, a molar ratio of Sr is a product of a parameter m and the parameter a, a molar ratio of Mn is a product of a parameter n and the parameter b. The parameters a and b satisfy 0.5<b<a≦0.5b+0.5<1.0, the parameter m satisfies 0≦m≦1.0, and the parameter n satisfies 0.4≦n≦0.7.

Some phosphor powders can be difficult to form into ceramic compacts because they are difficult to sinter. As described herein, phosphor powders that can degrade under conventional sintering temperatures can be sintered by heating the powder at a lower temperature, such as less than 800° C., while the powder is under greater than atmospheric pressure, such as at least 0.05 GPa. Phosphor ceramic compacts prepared by this method, and light-emitting devices incorporating these phosphor ceramic compacts, are also described.

The present invention refers to a method for modulating a condition of a biological cell.

Provided is an aluminate fluorescent material having a high emission intensity and having a composition containing a first element that contains one or more of Ba and Sr, and a second element that contains Mg and Mn. In the composition, when a molar ratio of Al is 10, a total molar ratio of the first element is a parameter a, a total molar ratio of the second element is a parameter b, a molar ratio of Sr is a product of a parameter m and the parameter a, a molar ratio of Mn is a product of a parameter n and the parameter b. The parameters a and b satisfy 0.5<b<a≤0.5b+0.5<1.0, the parameter m satisfies 0≤m≤1.0, and the parameter n satisfies 0.4≤n≤0.7.

A method of preparing a mechanoluminescent material includes the steps of: a) providing a mixture including precursors of a base material, a fluxing agent, and at least one lanthanide ion; b) heat-treating the mixture to obtain the mechanoluminescent material; and c) optionally grinding the mechanoluminescent material into powder form; wherein the fluxing agent facilitates incorporation of the at least one lanthanide ion into the base material. A composite material includes a first mechanoluminescent material, wherein the first mechanoluminescent material includes at least 2-3 mol % of a lanthanide ion.

The present invention provides a cosmetic product capable of making the skin look youthful and producing a natural three-dimensional appearance. The present invention relates to a cosmetic product including two or more phosphors each containing an inorganic compound, wherein the cosmetic product, upon excitation by excitation light having a wavelength of 365 nm, emits an emission spectrum having a fluorescence emission peak in each of the range of 400 to 530 nm and the range of 620 to 720 nm and having an I.sub.2/I.sub.1 of 1 to 30, where I.sub.1 is a maximum emission intensity in the range of 530 to 620 nm and I.sub.2 is a maximum peak intensity in the range of 620 to 720 nm.

The present invention relates to a composition comprising at least one phosphor.

A phosphor and a light emitting device comprising the same are disclosed in embodiments. The phosphor disclosed in an embodiment comprises a phosphor composition of a M.sub.4D.sub.1-xO.sub.yF:A.sub.x structure containing a divalent metal (M), an elements (A) of the active agent, a fluorine or fluor (F) and an oxygen (O), and, wherein the x satisfies a range of 0.001x0.1, and the y satisfies a range of 1y5, wherein the M is at least one of Mg, Ca, Sr, Ba and Zn, wherein the D is at least one of Si, Ge, Sn, Ti, Zr and Hf, wherein the F is fluorine, wherein the A comprises at least one of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb, wherein the phosphor composition emits red light by a peak wavelength of 400 nm to 470 nm as an excitation wavelength, wherein the red light has a peak wavelength of 655 nm to 670 nm and has a FWHM of less than 20 nm.

Provided is an aluminate fluorescent material having a high emission intensity and having a composition containing a first element that contains one or more of Ba and Sr, and a second element that contains Mg and Mn. In the composition, when a molar ratio of Al is 10, a total molar ratio of the first element is a parameter a, a total molar ratio of the second element is a parameter b, a molar ratio of Sr is a product of a parameter m and the parameter a, a molar ratio of Mn is a product of a parameter n and the parameter b. The parameters a and b satisfy 0.5<b<a0.5b+0.5<1.0, the parameter m satisfies 0m1.0, and the parameter n satisfies 0.4n0.7.

Provided is an aluminate fluorescent material having a high emission intensity and having a composition containing a first element that contains one or more of Ba and Sr, and a second element that contains Mg and Mn. In the composition, when a molar ratio of Al is 10, a total molar ratio of the first element is a parameter a, a total molar ratio of the second element is a parameter b, a molar ratio of Sr is a product of a parameter m and the parameter a, a molar ratio of Mn is a product of a parameter n and the parameter b. The parameters a and b satisfy 0.5<b<a0.5b+0.5<1.0, the parameter m satisfies 0m1.0, and the parameter n satisfies 0.4n0.7.