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The role of air annealing on the optical and scintillation properties of Mg co-doped Pr:LuAG transparent ceramics
Hu, Zewang1,2; Cao, Maoqing1,6; Chen, Haohong1; Shi, Yun1; Kou, Huamin1; Xie, Tengfei1; Wu, Lexiang1; Pan, Yubai3; Feng, Xiqi1; Vedda, Anna4; Beitlerova, A.5; Nikl, M.5; Li, Jiang1
2017
Source PublicationOptical Materials
ISSN09253467
Volume72Pages:201-207
AbstractPolycrystalline 0.2at%Pr:Lu3Al5O12(Pr:LuAG) transparent ceramics were fabricated by solid-state reaction using 0.01 wt% MgO as sintering aid. The as-sintered ceramics were annealed in air at different temperatures. Optical absorption, photoluminescence, X-ray excited luminescence and pulse height spectra obtained after different annealing were compared. Modifications of the oxygen vacancy concentrations are found to govern the changes of the optical and scintillation response for annealing temperatures lower than 1000 °C, while the oxidation of Pr3+to Pr4+plays a more important role for higher temperatures. Air annealing up to 700 °C is an effective tool to improve the 5d-4f emission efficiency of MgO co-doped Pr:LuAG transparent ceramics. The highest radioluminescence intensity is obtained for the 700 °C annealed sample. At variance, higher temperature annealing leads to the deterioration of 5d-4f photoluminescence and scintillation properties because of the self-absorption of Pr4+and energy transfer from Pr3+to Pr4+. In addition, we find that the 4f-4f slow emission of ceramics shows different response characteristics under different irradiation sources. © 2017 Elsevier B.V.
DOI10.1016/j.optmat.2017.05.054
EI Accession Number20172403767892
EI KeywordsPraseodymium compounds
EI Classification Number537.1 Heat Treatment Processes - 542.2 Magnesium and Alloys - 741.1 Light/Optics - 802.2 Chemical Reactions - 804.2 Inorganic Compounds - 812.1 Ceramics - 933.1 Crystalline Solids
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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/331005/25845
Collection中国科学院上海硅酸盐研究所
Affiliation1.Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Department of Physics, Shanghai Normal University, Shanghai; 200234, China;
4.Department of Materials Science, University of Milano-Bicocca, Via Cozzi 55, Milano; 20125, Italy;
5.Institute of Physics AS CR, Prague; 16200, Czech Republic;
6.Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai; 201418, China
Recommended Citation
GB/T 7714
Hu, Zewang,Cao, Maoqing,Chen, Haohong,et al. The role of air annealing on the optical and scintillation properties of Mg co-doped Pr:LuAG transparent ceramics[J]. Optical Materials,2017,72:201-207.
APA Hu, Zewang.,Cao, Maoqing.,Chen, Haohong.,Shi, Yun.,Kou, Huamin.,...&Li, Jiang.(2017).The role of air annealing on the optical and scintillation properties of Mg co-doped Pr:LuAG transparent ceramics.Optical Materials,72,201-207.
MLA Hu, Zewang,et al."The role of air annealing on the optical and scintillation properties of Mg co-doped Pr:LuAG transparent ceramics".Optical Materials 72(2017):201-207.
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