Enhanced luminescence in Tb3+-doped germanate glass ceramic scintillators containing CaF2 nanocrystals

被引:44
|
作者
Zhao, Jingtao [1 ]
Huang, Lihui [1 ]
Zhao, Shilong [1 ]
Xu, Shiqing [1 ]
机构
[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
germanate glass; glass ceramic; scintillating material; Tb3+; OPTICAL SPECTROSCOPY; EMISSIONS; SUBSTITUTION; BEHAVIOR; BAF2; IONS;
D O I
10.1111/jace.16095
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
Tb3+-doped germanate glass ceramics containing CaF2 nanocrystals were prepared by melt quenching method with subsequent heat treatment. Their microstructures were investigated by XRD and TEM techniques. Their optical properties were studied by the transmittance, the photoluminescence, and the X-ray excited luminescence (XEL). The luminescence intensity in the glass ceramics under 377 nm light and X-ray excitations is significantly enhanced. The maximum integrated XEL intensity of the glass ceramics is about 50% of that of the commercial Bi4Ge3O12 (BGO) scintillating crystal. The results indicate that Tb3+-doped germanate glass ceramic could be a promising scintillating material used in X-ray detection for slow event.
引用
收藏
页码:1720 / 1725
页数:6
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