Red light emitting afterglow photoluminescence phosphor and the phosphor of the afterglow lamp

摘要

The red light emitting photoluminescent photoluminescent phosphor is a europium activated rare earth acid sulfide phosphor, and its chemical formula is in the following range. Ln2o2s: Eux, my0.00001. Ltoreq. X.ltoreq. 0.5. 0.001. Ltoreq. Y.ltoreq.0.3, LN in the composition formula is at least one selected from the group consisting of Y, La, Gd and Lu, and M is a coactivator and is at least one selected from the group consisting of Mg, Ti, Nb, Ta and GA.