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Erschienen in:
01.08.2015
Luminescence properties of α-Sr2P2O7:Sm3+ phosphor without and with co-doping charge compensation agents
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 8/2015
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Abstract
In this work, Sm3+ doped α-Sr2P2O7 phosphors without and with co-doping different charge compensation agents such as Li+, Na+, K+ and Cs+ were prepared by a solid state reaction at high temperature. The excitation and emission spectrum, decay curves, and the effect of charge compensation agents on the luminescence properties of α-Sr2P2O7:Sm3+ were investigated in detail. The results demonstrate that the as-prepared α-Sr2P2O7:Sm3+ phosphors can be efficiently excited by ultraviolet light, and the emission spectrum consists of three emission peaks at 561, 601, 642 nm. By introducing the charge compensator M+ (M+ = Li+, Na+, K+, Cs+) into the α-Sr2P2O7:Sm3+ phosphor, the emission intensity can be enhanced remarkably.