Luminescence and scintillation properties of Ce-doped calcium hafnate perovskite single crystals

被引：12
|
作者：
Fukushima, Hiroyuki [1 ]
Nakauchi, Daisuke [1 ]
Kato, Takumi [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构：
[1] Nara Inst Sci & Technol NAIST, Div Mat Sci, Ikoma, Nara 6300192, Japan
来源：
JOURNAL OF LUMINESCENCE | 2022年 / 250卷
基金：
日本科学技术振兴机构; 日本学术振兴会;
关键词：
Scintillation; Photoluminescence; CaHfO3; PHOTOLUMINESCENCE; EFFICIENCY; DETECTOR;
D O I：
10.1016/j.jlumin.2022.119088
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Hafnium-based materials are attractive for a scintillator owing to their high density and effective atomic number. In this study, single crystals of Ce-doped calcium hafnate perovskite (Ce:CaHfO3) were synthesized from a Ca-rich composition, and photoluminescence (PL) and scintillation properties were investigated. The X-ray diffraction patterns revealed that the synthesized single crystals were a single phase of CaHfO3. The Ce:CaHfO3 exhibited blue luminescence at 430 nm and fast decay due to the 5d-4f transition of Ce3+ in both PL and scintillation. From the measurement of pulse height spectra under Cs-137 irradiation, the highest light yield of 7800 photons/MeV was observed in the 3% Ce:CaHfO3.
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页数：5
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