Electronic band modification for faster and brighter Ce,Mg:Lu3-xYxAl5O12 ceramic scintillators
文献类型：期刊论文
| 作者 | Chen, Xiaopu; Hu, Zewang; Feng, Yagang; Liu, Xin; Chen, Haohong; Shi, Yun; Kou, Huamin; Kucerkova, Romana; Beitlerova, Alena; Mihokova, Eva |
| 刊名 | JOURNAL OF LUMINESCENCE
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 214 |
| ISSN号 | 0022-2313 |
| 关键词 | Ce,Mg:LuYAG ceramics Y admixture Scintillation yield Decay kinetics |
| DOI | 10.1016/j.jlumin.2019.116545 |
| 文献子类 | Article |
| 英文摘要 | Ce,Mg:LuYAG transparent ceramics were successfully fabricated by the solid state reaction method. The results of x-ray diffraction, photoluminescence, light yield, scintillation decay and thermoluminescence are analyzed to provide better understanding of the influence of the Y3+ admixture in LuAG on the lattice structure, electronic band structure, energy-level structure of Ce3+ centers and scintillation properties. The lattice parameter of Ce,Mg:LuYAG ceramics shows a linear growth with the increasing Y content, which is in agreement with Vegard's law. Reducing the Lu-to-Y ratio in the LuYAG matrix, the Ce3+ 5d(1) energy level shifts to a lower energy, the forbidden gap becomes narrower and the electron traps become shallower. Furthermore, the increase of light yield and accelerated slow scintillation component are found with increasing Y admixture. After optimization, the light yield of Ce,Mg:Lu0.5Y2.5Al5O12 ceramics is achieved to 24,500 ph/MeV with 1 mu s shaping time, which is 40% higher than the value in the Y-free Ce,Mg:LuAG ceramic sample. |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26801]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Chen, Xiaopu,Hu, Zewang,Feng, Yagang,et al. Electronic band modification for faster and brighter Ce,Mg:Lu3-xYxAl5O12 ceramic scintillators[J]. JOURNAL OF LUMINESCENCE,2019,214. |
| APA | Chen, Xiaopu.,Hu, Zewang.,Feng, Yagang.,Liu, Xin.,Chen, Haohong.,...&Li, Jiang.(2019).Electronic band modification for faster and brighter Ce,Mg:Lu3-xYxAl5O12 ceramic scintillators.JOURNAL OF LUMINESCENCE,214. |
| MLA | Chen, Xiaopu,et al."Electronic band modification for faster and brighter Ce,Mg:Lu3-xYxAl5O12 ceramic scintillators".JOURNAL OF LUMINESCENCE 214(2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。