Abstract
SrSi2O2N2:Ce3+/Eu2+ phosphors have been synthesized with a high-temperature solid-state reaction method. The result shows that effective energy transfer has occurred between Ce3+ and Eu2+. The energy transfer efficiency was calculated, and the mechanism was determined as dipole-dipole interaction. The Influence of co-doping with a charge compensator M+ (M+ = Li+, Na+, K+) on the photoluminescence properties of SrSi2O2N2:Ce3+/Eu2+ was analyzed. It is clear that the PL properties of the SrSi2O2N2:Ce3+/Eu2+ phosphor are significantly improved by doping with Li+/Na+/K+, and the Li+ ions is the best charge compensator for this phosphor.
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