Structure and Optical Thermometry Characterization of Er3+/Yb3+ Co-Doped BaGd2CuO5
Structure and Optical Thermometry Characterization of Er3+/Yb3+ Co-Doped BaGd2CuO5
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Er3/Yb3共掺杂BaGd2CuO5的结构及光学测温表征
DOI：
10.1166/jnn.2016.11808
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发表时间：
2016
影响因子：
--
通讯作者：
Li Zhiqiang
中科院分区：
文献类型：
--
作者：
Li Xiaodong;Song Yanjie;Yang Yanmin;Mi Chao;Liu Yanzhou;Yu Fang;Liu Linlin;Zhang Jiao;Li Zhiqiang
Er3+/Yb3+ co-doped BaGd2CuO5 upconversion luminescent materials are obtained by solid phase method. Rietveld refinement on X-ray diffraction data indicates that Er3+/Yb3+ ions are inclined to occupy the Gd(1) site in the structure of BaGd2CuO5 (green phase). Two green emission peaks located at 523 nm and 547 nm have been produced by the excitation of 971 nm LD. The fluorescence intensity ratio (FIR) of the two green emission peaks have been investigated in the temperature range of 290 K–594 K. The maximum sensitivity derived from the FIR technique of the green upconversion emission is approximately 0.0038 K−1, and it has a high transmission power at low excitation density. This result implies that the Er3+/Yb3+ co-doped BaGd2CuO5 phosphors can play an important role in temperature measurements with a better sensitivity.
