The influence of air annealing on the microstructure and scintillation properties of Ce,Mg:LuAG ceramics

doi:10.1111/jace.16038

	The influence of air annealing on the microstructure and scintillation properties of Ce,Mg:LuAG ceramics
	Chen, Xiaopu 1,2; Hu, Zewang 1,2; Dai, Jiawei 1,2; Chen, Haohong 1; Shi, Yun 1; Kou, Huamin 1; Wang, Tiantian 2; Vedda, Anna 3; Beitlerova, Alena 4; Kucerkova, Romana 4
刊名	Journal of the American Ceramic Society
	2018
ISSN号	00027820
DOI	10.1111/jace.16038
英文摘要	The microstructures and optical properties of Ce,Mg:Lu3Al5O12 scintillator ceramics are investigated with particular focus on the effect of postannealing in air from 1000 to 1450°C. The formation of Al2O3 clusters after annealing above 1300°C is evidenced by scanning electron microscopy. The presence of this secondary phase is tentatively explained by the occurrence of Ce and Mg evaporation, proved by inductive coupled plasma optical emission spectrometry measurements, followed by defect diffusion and clustering during high temperature annealing. Meanwhile, optical investigations including absorption, X-ray induced luminescence, light yield, scintillation decay, and thermoluminescence prove the positive role of post-annealing that leads to a brighter and faster scintillation emission. This behavior is associated to the removal of oxygen vacancies occurring during such treatments. In parallel, the partial conversion of Ce3+ ions into Ce4+ is also observed as a consequence of annealings and the role of Ce4+ ions in the scintillation process is discussed. © 2018 The American Ceramic Society
出版者	Blackwell Publishing Inc.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25343]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China; 2.University of Chinese Academy of Sciences, Beijing, China; 3.Department of Materials Science, University of Milano-Bicocca, Milano, Italy; 4.Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
推荐引用方式 GB/T 7714	Chen, Xiaopu,Hu, Zewang,Dai, Jiawei,et al. The influence of air annealing on the microstructure and scintillation properties of Ce,Mg:LuAG ceramics[J]. Journal of the American Ceramic Society,2018.
APA	Chen, Xiaopu.,Hu, Zewang.,Dai, Jiawei.,Chen, Haohong.,Shi, Yun.,...&Li, Jiang.(2018).The influence of air annealing on the microstructure and scintillation properties of Ce,Mg:LuAG ceramics.Journal of the American Ceramic Society.
MLA	Chen, Xiaopu,et al."The influence of air annealing on the microstructure and scintillation properties of Ce,Mg:LuAG ceramics".Journal of the American Ceramic Society (2018).