CPC C09K 11/617 (2013.01) [C09K 11/02 (2013.01); G02B 6/005 (2013.01); G02B 6/0026 (2013.01); H01L 33/502 (2013.01); H01L 33/507 (2013.01)] | 29 Claims |
1. A phosphor composition comprising phosphor particles and comprising, on surfaces of the phosphor particles, at least one surface composition selected from the group consisting of: 1) a composition comprising a phosphorus-containing moiety and a carbon-containing moiety; 2) a composition comprising the phosphorus-containing moiety and a metal fluoride; 3) a composition comprising the phosphorus-containing moiety and the carbon-containing moiety and the metal fluoride; and 4) a composition comprising the phosphorus-containing moiety free of an alkyl phosphate compound, wherein the phosphor particles comprise a Mn4+ doped phosphor of formula I;
Ax[MFy]:Mn4+ I
wherein
A is Li, Na, K, Rb, Cs, or a combination thereof;
M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof;
x is the absolute value of the charge of the [MF3] ion;
y is 5, 6 or 7, and
wherein a D50 particle size of the phosphor particles is from about 3.9 μm to about 10.0 μm.
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