Luminescent material

A luminescent material for an LED, comprising:

• a compound including a host lattice,
• wherein the host lattice comprises first group ions and oxygen,
• wherein the first group includes at least one of Be, Mg, Ca, Sr, Ba, Zn, and Cd,
• wherein a first portion of the first group ions is substituted by divalent copper ions,
• wherein a second portion of the first group ions is substituted by lead ions, and
• wherein the compound has the formula
• a(M′O).b(M″2O).c(M″X).d(GeO2).e(M′″O).f(M″″2O3).g(M″″′oOp). h(M″″″xOy),
• wherein:
• M′ is a combination of Cu and Pb;
• M″ is Li, Na, K, Rb, Cs, Au, Ag, or any combination thereof;
• M″′ is Be, Mg, Ca, Sr, Ba, Zn, Cd, or any combination thereof;
• M″″ is Sc, Y, B, Al, La, Ga, In, or any combination thereof;
• M″″′ is Si, Ti, Zr, Mn, V, Nb, Ta, W, Mo, or any combination thereof;
• M″″″ is Bi, Sn, Pr, Sm, Eu, Gd, Dy, or any combination thereof;
• X is F, CI, Br, I, or any combination thereof;
• 0<a≦2;
• 0≦b≦2;
• 0≦c≦10;
• 0<d≦10;
• 0<e≦14;
• 0≦f≦14;
• 0≦g≦10;
• 0<h≦2;
• 0≦o≦2;
• 1≦p≦5;
• 1≦x≦2;
• and
• 1≦y≦5.

A luminescent material for an LED, comprising:

• a compound including a host lattice,
• wherein the host lattice comprises first group ions and oxygen,
• wherein the first group includes at least one of Be, Mg, Ca, Sr, Ba, Zn, Cd, and Mn,
• wherein a first portion of the first group ions is substituted by divalent copper ions,
• wherein a second portion of the first group ions is substituted by lead ions, and
• wherein the compound has the formula
• a(M′O).b(M″2O).c(M″X).d(P2O5).e(M′″O).f(M″″2O3).g(M′″″O2). h(M″″″xOy),
• wherein:
• M′ is a combination of Cu and Pb;
• M″ is Li, Na, K, Rb, Cs, Au, Ag, or any combination thereof;
• M″′ is Be, Mg, Ca, Sr, Ba, Zn, Cd, Mn, or any combination thereof;
• M″″ is Sc, Y, B, AI, La, Ga, In, or any combination thereof;
• M″′″ is Si, Ge, Ti, Zr, Hf;
• V, Nb, Ta, W, Mo, or any combination thereof;
• M″″″ is Bi, Sn, Pr, Sm, Eu, Gd, Dy, Ce, Tb or any combination thereof;
• X is F, CI, Br, I, or any combination thereof;
• 0<a≦2;
• 0≦b≦12;
• 0≦c≦16;
• 0<d≦3;
• 0<e≦5;
• 0≦f≦3;
• 0≦g≦2;
• 0<h ≦2;
• 1≦x≦2;
• and
• 1≦y≦5.