发光学报2021，Vol.42Issue(6)：804-809,6.DOI:10.37188/CJL.20210117
Tb3+掺杂透明锗酸盐微晶玻璃:制备与面向X射线探测的增强发光
Tb3+ Doped Transparent Germanate Glass Ceramics:Preparation and Enhanced Luminescence for X-ray Detection
摘要
Abstract
Tb3+ doped transparent germanate glass ceramics embedded with LaF3 nanocrystals were successfully prepared via melt-quenching and subsequent thermal treatment. The luminescent properties of the as-prepared glass and the glass ceramics were investigated in detail. The X-ray diffraction results prove that the crystalline phase pre-cipitated in the glass matrix was pure LaF3 crystal and the crystal size was between 16 nm and 21 nm. Under the exci-tation of 377 nm ultraviolet light and X-ray, Tb3+ glass ceramics embedded with LaF3 nanocrystals show much intense green emission than Tb3+ doped germanate glass, and the green emission intensity increases with the increment of thermal treatment temperature and time. The maximum integrated X-ray excited luminescence intensity of the glass ceramics is about 40. 3％ of that of Bi4Ge3O12 crystal which is the commercial scintillating crystal. Our research shows that Tb3+ doped germanate glass ceramics embedded with LaF3 nanocrystals have potential application prospects in X-ray detection.关键词
发光/Tb3+/锗酸盐玻璃/微晶玻璃/玻璃闪烁体Key words
luminescence/Tb3+/germanate glass/glass ceramics/glass scintillator分类
数理科学引用本文复制引用
陈宇暄,黄立辉,赵静涛,赵士龙,徐时清..Tb3+掺杂透明锗酸盐微晶玻璃:制备与面向X射线探测的增强发光[J].发光学报,2021,42(6):804-809,6.基金项目
浙江省自然科学基金(LY19E020004)资助项目Supported by Natural Science Foundation of Zhejiang Province(LY19E020004) （LY19E020004）
