中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Crystal growth, luminescence and scintillation properties of Eu2+:CeBr3 crystals

文献类型:期刊论文

作者Pan, Shangke1,4; Wang, QingQing2; Li, Huanying2; Chen, Xiaofeng2; Ren, Guohao2; Sun, Xilei3
刊名RADIATION MEASUREMENTS
出版日期2016-05-01
卷号88页码:7-13
关键词Crystal growth Scintillation crystal Energy transfer CeBr3 Vertical Bridgman method
英文摘要Eu2+:CeBr3 crystals were grown by vertical Bridgman growth method and slight aliovalent doping of Eu2+ in the CeBr3 crystal did not change the crystal structure. The X-ray stimulated luminescence, photoluminescence, decay kinetics and scintillation properties were investigated at room temperature. The X-ray stimulated luminescence spectra exhibited wide broad emission bands from 3.54 eV to 2.95 eV in the Eu2+:CeBr3 crystal with high content of 620 ppm of Eu2+, which were the overlap of the emission bands ascribed to 5d -> 4f transition of Ce3+ and 4f(6)5 d(1) -> 4f(7) transition of Eu2+, respectively. When the content of Eu2+ was decreased to 70 ppm, another emission band centered at 2.29 eV was observed. The photoluminescence spectra showed the energy transfer from Ce3+ to Eu2+. This decreased the Ce3+ emission intensity but enhanced the Eu2+ emission intensity. The photoluminescence decay time of Ce3+ emission decreased from 14 ns to 10 ns when the content of Eu2+ increased from 70 ppm to 620 ppm. The decay time of the emission of 525 nm did not change with the excitation wavelength and Eu2+ content, which could be assigned to the excitons that were bound on Eu2+ related centers. The light output of the Eu:CeBr3 crystal under the excitation of Am-241 radioactive source was less than 20.2% of Tl:NaI crystal. (C) 2016 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Nuclear Science & Technology
研究领域[WOS]Nuclear Science & Technology
关键词[WOS]EU2+ ENERGY-TRANSFER ; CEBR3 ; CE3+ ; PHOSPHOR
收录类别SCI
语种英语
WOS记录号WOS:000374607100002
源URL[http://ir.sic.ac.cn/handle/331005/23057]  
专题上海硅酸盐研究所_中试基地_期刊论文
作者单位1.Ningbo Univ, Sch Mat Sci & Chem Engn, State Key Lab Base Novel Funct Mat & Preparat Sci, Ningbo 315211, Zhejiang, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 201899, Peoples R China
3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
4.Key Lab Photoelect Mat & Devices Zhejiang Prov, Ningbo 315211, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714
Pan, Shangke,Wang, QingQing,Li, Huanying,et al. Crystal growth, luminescence and scintillation properties of Eu2+:CeBr3 crystals[J]. RADIATION MEASUREMENTS,2016,88:7-13.
APA Pan, Shangke,Wang, QingQing,Li, Huanying,Chen, Xiaofeng,Ren, Guohao,&Sun, Xilei.(2016).Crystal growth, luminescence and scintillation properties of Eu2+:CeBr3 crystals.RADIATION MEASUREMENTS,88,7-13.
MLA Pan, Shangke,et al."Crystal growth, luminescence and scintillation properties of Eu2+:CeBr3 crystals".RADIATION MEASUREMENTS 88(2016):7-13.

入库方式: OAI收割

来源:上海硅酸盐研究所

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