Photoluminescence and Scintillation Properties of Ce-, Pr-, and Tb-doped (Gd,Lu)2Hf2O7 Crystals

被引：26
|
作者：
Nakauchi, Daisuke [1 ]
Fukushima, Hiroyuki [1 ]
Kato, Takumi [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构：
[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, 8916-5 Takayama, Ikoma, Nara 6300192, Japan
来源：
SENSORS AND MATERIALS | 2022年 / 34卷 / 02期
基金：
日本科学技术振兴机构;
关键词：
scintillator; photoluminescence; radioluminescence; phosphor; dosimetry; STIMULATED LUMINESCENCE PROPERTIES; X-RAY; DOSIMETRIC PROPERTIES; OXYGEN VACANCIES; RADIOLUMINESCENCE;
D O I：
10.18494/SAM3696
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Gd2Hf2O7 and Lu2Hf2O7 single crystals doped with various rare-earth ions (Ce3+, Pr3+, and Tb3+) were prepared by the floating zone method to investigate their photoluminescence and scintillation properties. The Ce-doped samples show scintillation signals with a broad peak in the range of 400-600 nm, whereas the Tb-and Pr-doped samples show relatively strong emission characterized by a few sharp peaks in the range of 480-700 nm due to 4f-4f transitions of the dopant ions. The scintillation spectra of the Ce-doped Lu2Hf2O7 after annealing at various temperatures show significant changes in their shapes, suggesting changes in the valence of the Ce ions.
引用
收藏
页码：611 / 618
页数：8
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