Co-precipitation synthesis and optical properties of Eu3+ doped La3PO7 phosphors

被引：0
|
作者：
Ou Y. [1 ,2 ]
Fu B. [1 ,2 ]
Zhu L.-P. [3 ]
Chen X.-Y. [1 ]
Yang J.-Y. [1 ,2 ]
机构：
[1] School of Chemistry and Materials Science, Guizhou Normal University, Guiyang
[2] Key Lab for Functional Materials Chemistry of Guizhou Province, Guizhou Normal University, Guiyang
[3] School of Educational Science, Guizhou Normal University, Guiyang
来源：
Yang, Jin-Yu (jinyuyang@gmail.com) | 1600年 / Central South University of Technology卷 / 27期
基金：
中国国家自然科学基金;
关键词：
Co-precipitation method; Eu[!sup]3+[!/sup] doping; Fluorescence property; La[!sub]3[!/sub]PO[!sub]7[!/sub] phosphors;
D O I：
10.19476/j.ysxb.1004.0609.2017.05.014
中图分类号：
学科分类号：
摘要：
Eu3+ doped La3PO7 phosphors were synthesized by co-precipitation method. The crystal structure and optical properties of the as-synthesized samples were investigated by XRD, SEM, FT-IR and FL. The influences of pH and doping content of the as-prepared samples were also discussed. The results show that the single-phase La3PO7:Eu3+ crystals with monoclinic structure can be obtained. The photoluminescence spectra show strong red emission at 617 nm originating from 5D0-7F2 transition of Eu3+ ions under 280 nm light excitation. The concentration quenching phenomenon is observed when the doping content is over 4% (mole fraction),and the concentration quenching mechanism is caused by the exchange interaction of Eu3+ ions. © 2017, Science Press. All right reserved.
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页码：974 / 980
页数：6
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