Enhanced emissions in Tb3+ -doped oxyfluoride scintillating glass ceramics containing BaF2 nanocrystals

被引：25

作者：

Huang, Lihui ^{[1
]}

Jia, Shijie ^{[1
]}

Li, Yang ^{[1
]}

Zhao, Shilong ^{[1
]}

Deng, Degang ^{[1
]}

Wang, Huanping ^{[1
]}

Jia, Guohua ^{[1
]}

Hua, Youjie ^{[1
]}

Xu, Shiqing ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2015年 / 788卷

基金：

中国国家自然科学基金;

关键词：

Tb3+; Glass ceramic; BaF2; nanocrystals; Photoluminescence; X-ray excited luminescence; LUMINESCENCE BEHAVIOR; RARE-EARTH; ER3+ IONS; TRANSPARENT GLASS; UP-CONVERSION; CAF2; SRF2;

D O I：

10.1016/j.nima.2015.03.084

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Transparent Tb3+-doped glass ceramics containing BaF2 nanocrystals were prepared by melt-quenching method with subsequent heat treatment The XRD and EDS results showed the precipitated crystalline phase in the glass matrix was BaF2. Under 376 nm light, Tb3+ doped oxyfluoride glass ceramics containing BaF2 nanocrystals showed more intense green emission than the as-made glass, and the emission intensity increased with increasing heat treatment temperature and time. The lifetimes of 541 nm emission of Tb3+ doped oxyfluoride glass ceramics were longer than that of as made glass, which are in the range from 3.00 ms to 3.55 ms. Under X-ray excitation, the green emission was enhanced in the glass ceramics compared to the as made glass. The results indicate Tb3+ doped oxyfluoride glass ceramics containing BaF2 nanocrystals could be a material candidate for X-ray glass scintillator for slow event detection. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：111 / 115

页数：5

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