| abstract |
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 Chemical 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 Chemical Formula to obtain high light-emitting efficiency. [Chemical Formula] (A (1-p-q) B p C q ) a D b Si c O d N e :xEu 2+ , yRe 3+ , Zq) wherein A, B, and C are +2 metals, but different metals from one another; D is metals of Group 3; Re is +3 metals; Q is a 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. |