| abstract |
It relates to an oxynitride phosphor. The oxynitride phosphor is of formula 1 below: Formula 1 A p B q O r N s : R In this formula, A is barium or barium, Li, Na, K, Y, Sc, Be, Mg, Ca, Sr, Ba, Zn, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, A combination of one or more of Er, Yb, and Lu; B is silicon or silicon and a combination of at least one of Al, B, Ga, and Ge; R is europium, or europium and a combination of at least one of Ce, Pr, Sm, Nd, Tb, Dy, Yb, Tm, Er, Ho, and Mn; p, q, r, s are numbers such that p is greater than about 2 and less than about 6, q is greater than about 8 and less than about 10, r is greater than about 0.1 and less than about 6 and s is greater than about 10 and less than about 15 to be. Also included are a method of producing the oxynitride phosphor and a light emitting device comprising the oxynitride phosphor. |