Crystal structure evolution and luminescence property of Ce3+-doped Y2O3-Al2O3-Sc2O3 ternary ceramics
文献类型：期刊论文
| 作者 | Liu, YL; Hu, S; Zhang, YL; Wang, ZJ; Zhou, GH; Wang, SW |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2020-03-01 |
| 期号 | 3页码:840 |
| ISSN号 | 0955-2219 |
| DOI | 10.1016/j.jeurceramsoc.2019.10.022 |
| 文献子类 | Article |
| 英文摘要 | Ce3+-doped Y2O3-Al2O3-Sc2O3 ternary ceramics with varying Sc2O3 were prepared via solid-state-reactive method. Their constitutions, crystal structures, microstructures and luminescence properties were thoroughly investigated by powder X-ray diffraction, Sc-45 and Al-27 solid-state nuclear magnetic resonance (NMR), scanning electron microscope (SEM) as well as photoluminescence (PL) characterizations. Single-phased YSAG transparent ceramics with garnet structure and homogeneous microstructures can be obtained. The NMR results suggest that partial [AlO6] octahedrons are converted into [AlO4] tetrahedrons with increased Sc3+ . Partial Sc3+ occupies the remaining octahedral sites, the other Sc3+ occupies the dodecahedral sites. The luminescence spectra of the as-prepared ceramics show broadened emission bands with excessive Sc3+. incorporation. More significantly, the solubility of Ce3+ in garnet ceramics extensively increases due to the incorporation of Sc3+, leading to a considerable red-shift and broadening of emission spectra with little luminescence decline, indicating that the new ceramic phosphors are promising for white-light illumination with improved color rendering index. |
| WOS关键词 | POWDER DIFFRACTION ; NMR ; MICROSTRUCTURE ; OXIDES |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28275]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Liu, YL,Hu, S,Zhang, YL,et al. Crystal structure evolution and luminescence property of Ce3+-doped Y2O3-Al2O3-Sc2O3 ternary ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(3):840. |
| APA | Liu, YL,Hu, S,Zhang, YL,Wang, ZJ,Zhou, GH,&Wang, SW.(2020).Crystal structure evolution and luminescence property of Ce3+-doped Y2O3-Al2O3-Sc2O3 ternary ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(3),840. |
| MLA | Liu, YL,et al."Crystal structure evolution and luminescence property of Ce3+-doped Y2O3-Al2O3-Sc2O3 ternary ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .3(2020):840. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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