PROCESS FOR SYNTHESIZING A MN-DOPED PHOSPHOR

摘要

A process for synthesizing a manganese (Mn4+) doped phosphor includes milling particles of the a phosphor precursor of formula I, and contacting the milled particles with a fluorine-containing oxidizing agent at an elevated temperature 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, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7.