Luminscent material for solid-state sources of white light

A luminescent material for solid sources of white light, based on blue-emission light diodes InGaN, wherein the material contains yttrium oxide, oxides of rare-earth metals as well as aluminium, gallium and indium oxides, wherein the material has the formula of:

• [(Y1-x-y-zCexΣ0(Ln-1)yΣ(Ln-2)z]3-α(Al1-p-qGapInq)5O12-1.5α,
• wherein α is a value in the range of 0.20≦α≦2.80 such that the stoichiometric index of oxygen varies in the range of 11.70≧O12-1.5.60 ≧7.80;
• wherein x is the atomic fraction of cerium in the range of 0.001<x<0.15;
• wherein Σ(Ln-1)y includes one or more lanthanides of the Gd, Tb, La, Lu and Sm group, constituting, together with yttrium and cerium, the basis of a cation sub-lattice;
• wherein y varies in the range of 0<y<0.90;
• wherein Σ(Ln-2)z includes one or more lanthanides of the Pr, Nd, Eu, Dy, Ho, Tm, Er and Yb group, which are dopants introduced into the cation sub-lattice in a concentrations in the range of 0.0001<z<0.01;
• wherein x, y and z are present such that 1-x-y-z>0;
• wherein p and q include atomic fractions of gallium and indium in an aluminium sub-lattice, wherein p varies in the range of 0<p<0.3 and q varies in the range of 0<q<0.3.

A luminescent material for solid-state sources of white light based on blue-emission InGaN diodes, which contains yttrium oxide, oxides of rare-earth metals, as well as aluminium oxide, wherein the material has the formula of:

• [(Y1-x-y-zCexΣ(Ln-1)yΣ(Ln-2)z]3-αAl5O12-1.5α;
• wherein α has a value changing within the range of 0.20≦α≦2.80 such that the stoichiometric index of oxygen varies in the range of 11.70≧O12-1.5α≧7.80;
• wherein x is the atomic fraction of cerium, varying in the range of 0.001<x<0.15;
• wherein Σ(Ln-1)y includes one or more lanthanides of the Gd, Tb, La, Lu and Sm group, which, together with yttrium and cerium, constitute the basis of a cation sub-lattice;
• wherein y varies in the range of 0<y<0.90;
• wherein Σ(Ln-2)z includes one or several lanthanides of the Pr, Nd, Eu, Dy, Ho, Tm, Er and Yb group, which are dopants introduced into the cation sub-lattice in concentrations in the range of 0.0001<z<0.01;
• wherein x, y and z are present such that 1-x-y-z>0.

A luminescent material for solid sources of white light based on blue-emitting light diodes InGaN, which contains oxides of yttrium and rare-earth metals as well as aluminium oxide, wherein the material has the formula of:

• [(Y1-x-yCexΣ(Ln-1)y]3-αAl5O12-1.5α;
• wherein α varies in the range of 0.20≦α≦2.80, such that the stoichiometric index of oxygen varies in the 11.7≧O12-1.5α≧7.80 range;
• wherein x is the atomic fraction of cerium, which varies in the 0.001<x<0.15 range;
• wherein Σ(Ln-1)y includes one or more lanthanides of the Gd, Tb, La, Lu and Sm group, which, together with yttrium and cerium, form the basis of a cation sub-lattice;
• wherein y varies in the range of 0<y<0.90;
• wherein x and y are present such that 1-x-y>0.