HALOSILICATE PHOSPHORS AND WHITE LIGHT EMITTING DEVICES INCLUDING SAME

摘要

PURPOSE: A halosilicate phosphor and a white light emitting device including thereof are provided to secure the excellent color reproducibility and the color rendering property of the phosphor. CONSTITUTION: A halosilicate phosphor includes a composition of chemical formula 1: p(Ca_(1-x)M1_x)OqM2O_2rM3A_2: sM4. In the chemical formula 1, M1 is selected from Sr(2+) and Ba(2+). M2 is selected from Si(4+) and Ge(4+). M3 is selected from Ca(2+), Sr(2+) and Ba(2+). M4 is selected from Eu(2+), Mn(2+), Sb(2+), Ce(3+), Pr(3+), Nd(3+), Sm(3+), Tb(3+), Dy(3+), Ho(3+), Er(3+), Yb(3+) and Bi(3+).