The present invention relates to a metal hydride device having a variable transparency, comprising a substrate, at least one layer including a photochromic yttrium hydride having a chosen band gap, and a capping layer at least partially positioned on the opposite side of the photochromic yttrium hydride layer from the substrate, said capping layer being essentially impermeable to hydrogen and oxygen.

The present invention relates to a metal hydride device having a variable transparency, comprising a substrate, at least one layer including a photochromic yttrium hydride having a chosen band gap, and a capping layer at least partially positioned on the opposite side of the photochromic yttrium hydride layer from the substrate, said capping layer being essentially impermeable to hydrogen and oxygen.

Optically transparent glass ceramic materials comprising a glass phase containing and a crystalline tungsten bronze phase comprising nanoparticles and having the formula M.sub.xWO.sub.3, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and U, and where 0<x<1. Aluminosilicate and zinc-bismuth-borate glasses comprising at least one of Sm.sub.2O.sub.3, Pr.sub.2O.sub.3, and Er.sub.2O.sub.3 are also provided.

A scenario-adaptable color-changing ink and a corresponding solar glass product are provided. The ink includes 7-30 parts by weight of photopolymer, 8-20 parts by weight of photoactive monomer, 1-5 parts by weight of photosensitizer, 30-55 parts by weight of weather-resistant resin, 1-10 parts by weight of curing agent, and 1-15 parts by weight of pearlescent pigment. The pearlescent pigment is at least one interference pearlescent pigments with weather-resistance, which has no color. Each sheet of the pearlescent pigment can be considered as a miniature prism which can break the white composite light into colorful monochromatic light, thus allow the coating of the printing ink to present a beautiful pearl luster and metallic luster. The pattern color which is visible by human is a result of overlaps and interferes of lights that the incident light is multiply reflected and refracted by the sheets of transparent pearlescent pigment.

A scenario-adaptable color-changing ink and a corresponding solar glass product are provided. The ink includes 7-30 parts by weight of photopolymer, 8-20 parts by weight of photoactive monomer, 1-5 parts by weight of photosensitizer, 30-55 parts by weight of weather-resistant resin, 1-10 parts by weight of curing agent, and 1-15 parts by weight of pearlescent pigment. The pearlescent pigment is at least one interference pearlescent pigments with weather-resistance, which has no color. Each sheet of the pearlescent pigment can be considered as a miniature prism which can break the white composite light into colorful monochromatic light, thus allow the coating of the printing ink to present a beautiful pearl luster and metallic luster. The pattern color which is visible by human is a result of overlaps and interferes of lights that the incident light is multiply reflected and refracted by the sheets of transparent pearlescent pigment.

A photochromic glass, comprising: (i) a glass matrix that, comprising in mol percent (mol %) based on oxides: 66 mol %≤SiO.sub.2≤75 mol %; 8 mol %≤B.sub.2O.sub.3≤13 mol %; mol %≤Al.sub.2O.sub.3≤7 mol %; 1.5 mol %≤P.sub.2O.sub.5≤6 mol %, mol %≤Na.sub.2O≤5.5 mol %; 3 mol %≤K.sub.2O≤9.5 mol %; 0 mol %≤MgO≤4 mol %; 0 mol %≤Li.sub.2O≤0.05 mol %; 0 mol %≤BaO≤0.05 mol %; 0 mol %≤CaO≤0.05 mole %; wherein the amount of (Li.sub.2O+BO+CaO≤0.1 mole %); and (ii)) a plurality of photochromic agents, comprising in mol percent (%) with respect to the glass matrix: 0.07%≤Ag≤0.15%; 0.14%≤Cl≤0.25%; 0.025%≤Br≤0.04%; 0.0065%≤CuO≤0.015%, and wherein CuO/Ag≤0.22.

A photochromic glass, comprising: (i) a glass matrix that, comprising in mol percent (mol %) based on oxides: 66 mol %≤SiO.sub.2≤75 mol %; 8 mol %≤B.sub.2O.sub.3≤13 mol %; mol %≤Al.sub.2O.sub.3≤7 mol %; 1.5 mol %≤P.sub.2O.sub.5≤6 mol %, mol %≤Na.sub.2O≤5.5 mol %; 3 mol %≤K.sub.2O≤9.5 mol %; 0 mol %≤MgO≤4 mol %; 0 mol %≤Li.sub.2O≤0.05 mol %; 0 mol %≤BaO≤0.05 mol %; 0 mol %≤CaO≤0.05 mole %; wherein the amount of (Li.sub.2O+BO+CaO≤0.1 mole %); and (ii)) a plurality of photochromic agents, comprising in mol percent (%) with respect to the glass matrix: 0.07%≤Ag≤0.15%; 0.14%≤Cl≤0.25%; 0.025%≤Br≤0.04%; 0.0065%≤CuO≤0.015%, and wherein CuO/Ag≤0.22.

Optically transparent glass ceramic materials comprising a glass phase containing and a crystalline tungsten bronze phase comprising nanoparticles and having the formula M.sub.xWO.sub.3, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and U, and where 0<x<1. Aluminosilicate and zinc-bismuth-borate glasses comprising at least one of Sm.sub.2O.sub.3, Pr.sub.2O.sub.3, and Er.sub.2O.sub.3 are also provided.

Manufacturing glass ceramic materials comprises ceramming a glass to grow a crystalline tungsten bronze phase comprising nanoparticles having a formula M.sub.xWO.sub.3, where M includes a dopant cation, and where 0<x<1.

Optically transparent glass ceramic materials comprising a glass phase containing and a crystalline tungsten bronze phase comprising nanoparticles and having the formula M.sub.xWO.sub.3, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and U, and where 0<x<1. Aluminosilicate and zinc-bismuth-borate glasses comprising at least one of Sm.sub.2O.sub.3, Pr.sub.2O.sub.3, and Er.sub.2O.sub.3 are also provided.