Effect of ligand field symmetry on upconversion luminescence in heat-treated LaBGeO5:Yb3+, Er3+glass
文献类型：期刊论文
| 作者 | Ali, Mohamed. A.1,2; Ren, Jinjun3; Liu, Xiaofeng1; Qiu, Jianrong4 |
| 刊名 | Journal of the American Ceramic Society
 |
| 出版日期 | 2018 |
| 卷号 | 101期号:9页码:4387-4396 |
| ISSN号 | 00027820 |
| DOI | 10.1111/jace.15578 |
| 英文摘要 | In this paper, we report upconversion (UC) luminescence enhancement in LaBGeO5:Yb3+, Er3+glass-ceramics (GCs), surface crystallized glass-ceramics (SCGCs) and ceramics compared with the as-melt glass fabricated by the conventional melt-quenching technique. Based on structural investigations, we find that the nucleation and crystallization of trigonal stillwellite LaBGeO5:Yb3+, Er3+nanocrystals occur first at the glass surface before the following volume crystallization. The local site symmetry around rare earth (RE) ions which was evaluated using the Eu3+ions as a probe together with Judd-Ofelt theory calculations exhibits a clear increase with the devitrification of the glass. Consequently, complete crystallization of the glass leads to largest enhancement in the UC emissions of the LaBGeO5:Yb3+, Er3+ceramics. We ascribe the enhancement of UC luminescence in the LaBGeO5:Yb3+, Er3+GCs, SCGCs, and ceramics to the structural ordering and the improvement of site symmetry surrounding RE ions that minimizes the rate of nonradiative relaxation process. © 2018 The American Ceramic Society |
| 出版者 | Blackwell Publishing Inc. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25351]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.School of Materials Science and Engineering, Zhejiang University, Hangzhou, China; 2.Faculty of Science, Department of Physics, Suez University, Suez, Egypt; 3.Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China; 4.State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, China |
| 推荐引用方式 GB/T 7714 | Ali, Mohamed. A.,Ren, Jinjun,Liu, Xiaofeng,et al. Effect of ligand field symmetry on upconversion luminescence in heat-treated LaBGeO5:Yb3+, Er3+glass[J]. Journal of the American Ceramic Society,2018,101(9):4387-4396. |
| APA | Ali, Mohamed. A.,Ren, Jinjun,Liu, Xiaofeng,&Qiu, Jianrong.(2018).Effect of ligand field symmetry on upconversion luminescence in heat-treated LaBGeO5:Yb3+, Er3+glass.Journal of the American Ceramic Society,101(9),4387-4396. |
| MLA | Ali, Mohamed. A.,et al."Effect of ligand field symmetry on upconversion luminescence in heat-treated LaBGeO5:Yb3+, Er3+glass".Journal of the American Ceramic Society 101.9(2018):4387-4396. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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