EPR study of luminescence mechanism of Nd3+ -doped borate aluminate glass

被引：9
|
作者：
Yue, Yu [1 ,2 ]
Shao, Chongyun [1 ,2 ]
Kang, Shuai [1 ,2 ]
Wang, Fan [1 ,2 ]
Wang, Xin [1 ,3 ]
He, Dongbing [1 ]
Chen, Wei [1 ]
Hu, Lili [1 ,3 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2019年 / 45卷 / 05期
关键词：
Rare-earth ion coordination environment; EPR; 2D-HYSCORE; Borate aluminate glass; SOLID-STATE NMR; SPECTROSCOPIC PROPERTIES; CALCIUM;
D O I：
10.1016/j.ceramint.2018.12.016
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The luminescence mechanism of Nd3+: B2O3-Al-2-O-3 -CaO glasses with different amounts of B2O3 were investigated based on their electron paramagnetic resonance spectra and luminescence properties. The results of the echo-detection field sweep exhibited two different maxima indicating that Nd3+ ions occupy two different sites. Al-27 and B-11 signals in two-dimensional hyperfine sublevel correlation spectra were observed in the ( + , +) quadrant, indicating that both Al-27 and B-11 are located in the second or higher order Nd3+ coordination shell. In addition, the fraction of the B-11 nucleus present in the Nd3+ coordination sphere increased with an increase in the amount of B2O3. The continuous changes in the hypersensitive transition intensity and luminescence properties are strong indicators for the change in the Nd3+ coordination environment.
引用
收藏
页码：6566 / 6569
页数：4
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