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Effect of thermal annealing on scintillation properties of Ce:Gd2Y1Ga2.7Al2.3O12under different atmosphere
Wang, Chao; Ding, Dongzhou; Wu, Yuntao; Li, Huanying; Chen, Xiaofeng; Shi, Jian; Wang, Qingqing; Ye, Le; Ren, Guohao
2017
Source PublicationApplied Physics A: Materials Science and Processing
ISSN09478396
Volume123Issue:5
AbstractCerium-doped 1% Ce:Gd2Y1Ga2.7Al2.3O12(GYGAG) single crystal samples grown via Czochralski method were annealed under air, O2and N2atmospheres from 350 to 1400 °C. The X-ray excited luminescence spectra, energy spectra and UV as well as thermally stimulated luminescence (TSL) spectra were performed comparatively on “as-grown” and thermally annealed samples. It was found that the luminescence efficiency after annealing in air and O2was significantly enhanced compared to the non-annealed samples and this phenomenon was suggested to be caused by the existence of some oxygen vacancies in the Ce:GYGAG crystals. And the oxygen vacancies in the as-grown GYGAG crystals can be effectively eliminated by means of annealing in O2containing atmosphere without changing the luminescence mechanism. From the TSL curves before and after annealing, three traps within 77–650 K were found to be related to oxygen vacancies. © 2017, The Author(s).
DOI10.1007/s00339-017-0997-z
EI Accession Number20171903656909
EI KeywordsOxygen vacancies
EI Classification Number537.1 Heat Treatment Processes - 741.1 Light/Optics - 933.1 Crystalline Solids - 933.1.2 Crystal Growth
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25763
Collection中国科学院上海硅酸盐研究所
AffiliationShanghai Institute of Ceramics, Chinese Academy of Sciences, No. 215 Chengbei Road, Jiading, Shanghai; 201800, China
Recommended Citation
GB/T 7714
Wang, Chao,Ding, Dongzhou,Wu, Yuntao,et al. Effect of thermal annealing on scintillation properties of Ce:Gd2Y1Ga2.7Al2.3O12under different atmosphere[J]. Applied Physics A: Materials Science and Processing,2017,123(5).
APA Wang, Chao.,Ding, Dongzhou.,Wu, Yuntao.,Li, Huanying.,Chen, Xiaofeng.,...&Ren, Guohao.(2017).Effect of thermal annealing on scintillation properties of Ce:Gd2Y1Ga2.7Al2.3O12under different atmosphere.Applied Physics A: Materials Science and Processing,123(5).
MLA Wang, Chao,et al."Effect of thermal annealing on scintillation properties of Ce:Gd2Y1Ga2.7Al2.3O12under different atmosphere".Applied Physics A: Materials Science and Processing 123.5(2017).
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