Tb3+ Doped Transparent Germanate Glass Ceramics: Preparation and Enhanced Luminescence for X-ray Detection
Synthesis and Properties of Materials|更新时间:2021-06-18
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Tb3+ Doped Transparent Germanate Glass Ceramics: Preparation and Enhanced Luminescence for X-ray Detection
增强出版
发光学报Vol. 42, Issue 6, Pages: 804-809(2021)
作者机构:
1.中国计量大学 材料与化学学院, 浙江 杭州 310018
2.中国计量大学 光电材料与器件研究院, 浙江 杭州 310018
3.中国计量大学 光学与电子科技学院, 浙江 杭州 310018
4.Laboratory of Glasses and Ceramics, Univ Rennes, CNRS, ISCR(Institut des Sciences Chimiques de Rennes) UMR CNRS 6226, University of Rennes 1, Rennes 35042, France
doped transparent germanate glass ceramics embedded with LaF
3
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 precipitated in the glass matrix was pure LaF
3
crystal and the crystal size was between 16 nm and 21 nm. Under the excitation of 377 nm ultraviolet light and X-ray
Tb
3+
glass ceramics embedded with LaF
3
nanocrystals show much intense green emission than Tb
3+
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 Bi
4
Ge
3
O
12
crystal which is the commercial scintillating crystal. Our research shows that Tb
3+
doped germanate glass ceramics embedded with LaF
3
nanocrystals have potential application prospects in X-ray detection.
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