Photoluminescence and Scintillation Properties of Ce-doped (MgxCa1-x)HfO3 Single Crystals

被引：27
作者：
Fukushima, Hiroyuki [1 ]
Nakauchi, Daisuke [1 ]
Kato, Takumi [1 ]
Kawaguchi, Noriaki [1 ]
Yanagida, Takayuki [1 ]
机构：
[1] Nara Inst Sci & Technol, Div Mat Sci, 8916-5 Takayama Cho, Ikoma, Nara 6300192, Japan
来源：
SENSORS AND MATERIALS | 2023年 / 35卷 / 02期
基金：
日本学术振兴会;
关键词：
scintillation; photoluminescence; single crystal; floating zone; LUMINESCENCE PROPERTIES; CERAMICS;
D O I：
10.18494/SAM4139
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Ce:(MgxCa1-x)HfO3 (x = 0.5, 2.5, 5, and 10%) single crystals were successfully grown by the floating zone method, and their photoluminescence (PL) and scintillation properties were investigated. A broad luminescence band with a maximum at 430 nm was observed in both the PL and scintillation spectra. The PL quantum yield (QY) improved with the substitution of Mg, and the PL QY of Ce:(MgxCa1-x)HfO3 reached 50%. Fast decay due to the 5d-4f transition of Ce3+ was observed for both the PL and scintillation. Ce:(MgxCa1-x)HfO3 (x = 5%) showed the highest light yield of similar to 9500 photons/MeV among the synthesized samples, and this value is higher than that of common X-and gamma-ray detection scintillators such as Bi4Ge3O12 and Ce:Gd2SiO5 single crystals.
引用
收藏
页码：429 / 437
页数：9
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