Optical, luminescence and scintillation characteristics of non-stoichiometric LuAG:Ce ceramics
文献类型：期刊论文
| 作者 | Liu, Shuping1,2; Feng, Xiqi1; Mares, Jiri A.3; Babin, V.3; Nikl, Martin3; Beitlerova, Alena3; Shi, Yun1; Zeng, Yanping1; Pan, Yubai1; D'Ambrosio, Carmelo4 |
| 刊名 | JOURNAL OF LUMINESCENCE
 |
| 出版日期 | 2016 |
| 卷号 | 169页码:72-77 |
| 关键词 | Non-stoichimetric LuAG:Ce ceramics Radioluminescence Scintillation response Anti-site defects |
| 英文摘要 | Non-stoichiometric Lu3+xAl5O12:Ce (Lu(3+x)AG:Ce, x=1, 2, 3 and 4 %) ceramics were fabricated by solid state reaction method and further optimized by an air-annealing process. Absorption, luminescence spectra and scintillation characteristics such as light yield, scintillation decay times, energy resolution, proportionality and afterglow were measured and compared with those of the latest LuAG:Ce single crystal and stoichiometric LuAG:Ce,Mg ceramic samples. Thanks to the elimination of oxygen vacancies produced in the vacuum sintering process, air-annealing treatment led to a significant decrease of afterglow and a remarkable enhancement of radioluminescence intensity and light yield. The highest light yield was found in annealed 1% Lu3+ rich Lu(3+1%)AG:Ce ceramic, reaching 14,760 ph/MeV (1 mu s shaping time) and 22,400 ph/MeV (10 is shaping time). Scintillation decays of Lu(3+x)AG:Ce ceramics consist of both fast (decay time 65-73 ns) and slow (decay time 740-1116 ns) decay components where the relative intensity of the latter is higher (similar to 58%). A decreasing trend in scintillation efficiency was observed with increasing excess of Lu (with higher x values) in the samples. This can be explained by the existence of various electron traps due to Lu-Al antisite defect and structure disorder at the gain boundaries and interfaces. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Optics |
| 研究领域[WOS] | Optics |
| 关键词[WOS] | LUTETIUM ALUMINUM GARNET ; SINGLE-CRYSTAL ; SINTERING AIDS ; YAG CRYSTALS ; CE CERAMICS ; FABRICATION ; PERFORMANCE ; ROUTES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365604700011 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23387]  |
| 专题 | 上海硅酸盐研究所_透明光功能无机材料重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Acad Sci Czech Republic, Inst Phys, Prague 16253, Czech Republic 4.CERN, PH LHB Grp, CH-1211 Geneva 28, Switzerland |
| 推荐引用方式 GB/T 7714 | Liu, Shuping,Feng, Xiqi,Mares, Jiri A.,et al. Optical, luminescence and scintillation characteristics of non-stoichiometric LuAG:Ce ceramics[J]. JOURNAL OF LUMINESCENCE,2016,169:72-77. |
| APA | Liu, Shuping.,Feng, Xiqi.,Mares, Jiri A..,Babin, V..,Nikl, Martin.,...&Huang, Yihua.(2016).Optical, luminescence and scintillation characteristics of non-stoichiometric LuAG:Ce ceramics.JOURNAL OF LUMINESCENCE,169,72-77. |
| MLA | Liu, Shuping,et al."Optical, luminescence and scintillation characteristics of non-stoichiometric LuAG:Ce ceramics".JOURNAL OF LUMINESCENCE 169(2016):72-77. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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