WHITE-EMITTING PHOSPHORS AND LIGHTING APPARATUS USING THE SAME

摘要

A phosphor has a general formula of (M1-m-nCemEun)3Al2O5X2, wherein M is at least one selected from the group consisting of Ca, Sr and Ba; and X is at least one selected from the group consisting of Cl and Br, while 0<m<1 and 0<n<1.