A novel red phosphor BaZn2(PO4)2:Sm3+, R+ (R=Li,Na, K) |
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| Authors: | Zhijun Wang Panlai Li Zhiping Yang Qinglin Guo |
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| Institution: | 1. College of Physics Science & Technology, Hebei University, Baoding 071002, China;2. Hebei Key Laboratory of Optic-electronic Information Materials, Baoding 071002, China |
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| Abstract: | BaZn2(PO4)2:Sm3+ phosphor was synthesized by a high temperature solid-state reaction in atmosphere. BaZn2(PO4)2:Sm3+ phosphor can be efficiently excited by ultraviolet and blue light, and the emission spectrum consists of three emission peaks at 568, 606 and 660 nm. By increasing the Sm3+ doped content, the emission intensity of the phosphor can reach the maximum at 0.02 mol Sm3+, then the concentration quenching occurs. By introducing the compensator charge R+ (R=Li, Na, K) into the BaZn2(PO4)2:Sm3+ phosphor, its emission intensity can be enhanced. The Commission International de l'Eclairage (CIE) chromaticity coordinates of Ba0.96Zn2(PO4)2:0.02Sm3+, 0.02K+ phosphor were (x=0.623, y=0.361). The results indicate that BaZn2(PO4)2:Sm3+, R+ (R=Li, Na, K) may be a promising red phosphor for white light-emitting diodes. |
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