Upconversion Luminescence and Optical Temperature Sensing Properties for Lu2O3(Y2O3):Yb3+/Er3+/Gd3+ Phosphors

被引：0
|
作者：
Zhang Y.-H. [1 ]
Liu D. [1 ]
Wang T.-T. [1 ]
Jia H. [1 ]
Liu H. [1 ]
Fu Z.-L. [2 ]
机构：
[1] Department of Electronic and Computer, Jilin Jianzhu University, Changchun
[2] School of Physics, Jilin University, Changchun
来源：
Faguang Xuebao/Chinese Journal of Luminescence | 2019年 / 40卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Fluorescence intensity ratio; Sensitivity; Sol-gel method;
D O I：
10.3788/fgxb20194012.1478
中图分类号：
学科分类号：
摘要：
Lu2O3(Y2O3):Yb3+/Er3+/Gd3+ phosphors were synthesized using a sol-gel method.Upconversion(UC) luminescence and temperature-sensing properties were investigated. Under 980 nm excitation, bright green, red, and weak ultraviolet emissions were observed. The optimal Gd3+ doping concentrations in Lu2O3(Y2O3) was 10%. The energy transfer processes from Er3+ to Gd3+ ions has been investigated and discussed. By utilizing the fluorescence intensity ratio (FIR) technique, the temperature sensing behaviors of the optimal sample are investigated based on the thermally coupled levels of 2H11/2 and 4S3/ 2 of Er3+ ions from 313 K to 573 K. The maximal sensitivity was gained to be 0.005 91 K-1 for Y2O3:1%Er3+/1%Yb3+/10%Gd3+. © 2019, Science Press. All right reserved.
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页码：1478 / 1485
页数：7
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