OXYNITRIDE PHOSPHOR, METHOD FOR PREPARING THE SAME, AND LIGHT-EMITTING DEVICE

摘要

The present invention relates to an oxynitride phosphor, a method for preparing the same, and a light-emitting device. More specifically, the present invention provides the oxynitride phosphor including crystals represented by the following formula, a method for preparing the same, and a light-emitting device including the oxynitride phosphor. The invention includes the crystals represented by the following formula to obtain high light-emitting efficiency. [formula] (A(1-p-q)BpCq)aDbSicOdNe: xEu2+, yRe3+, Zq) wherein A, B, and C are different metals, +2 metals; D is metals of group 3; Re 3+ metals; Q is flux; p and q are 0 < p < 1.0 and 0 = q < 1.0; a, b, c, d, and e are 1.0 = a = 2.0, 0 = b = 4.0, 0 < c = 1.0, 0 < d = 1.0, and 0 < e = 2.0; x, y, and z are 0 < x = 0.25, 0 = y = 0.25, and 0 = z = 0.25.