Role of Yttrium in Thermoluminescence of LYSO:Ce Crystals
文献类型：期刊论文
| 作者 | Chen, L; Ding, DZ; Fasoli, M; Wang, TT; Chen, XP; Zhao, SW; Chen, J; Sun, YY; Li, J; Wu, YT |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2020-08-13 |
| 期号 | 32页码:17726 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.0c03370 |
| 文献子类 | Article |
| 英文摘要 | This paper presents a detailed study of the influence of yttrium (Y) concentration on thermally stimulated luminescence (TSL) of LYSO:Ce crystals and establishes the relationship between electron traps and scintillation properties. With the increase of Y concentration, the glow curve shifts toward higher temperatures and the trap depth increases gradually. Our results revealed two groups of electron traps with one shallow (E-t approximate to 0.10-0.26 eV) and one deep (E-t approximate to 1.00-1.21 eV). Our TSL results suggest that the amount of shallow traps varied with Y content has a positive correlation with energy resolution, while the amount of deep traps is inversely proportional to light output. In order to analyze the variation trend of trap depths and their mechanism in detail, we calculated the band gap with the PBE functional and VUV excitation spectra. The results show that the increase of band gap possibly leads to the increase of deep electron trap depth. |
| WOS关键词 | RARE-EARTH ; SCINTILLATION MECHANISM ; LUMINESCENCE ; TRAPS ; LSO ; GROWTH ; SITES ; IONS |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27835]  |
| 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, L,Ding, DZ,Fasoli, M,et al. Role of Yttrium in Thermoluminescence of LYSO:Ce Crystals[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2020(32):17726. |
| APA | Chen, L.,Ding, DZ.,Fasoli, M.,Wang, TT.,Chen, XP.,...&Feng, H.(2020).Role of Yttrium in Thermoluminescence of LYSO:Ce Crystals.JOURNAL OF PHYSICAL CHEMISTRY C(32),17726. |
| MLA | Chen, L,et al."Role of Yttrium in Thermoluminescence of LYSO:Ce Crystals".JOURNAL OF PHYSICAL CHEMISTRY C .32(2020):17726. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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