Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics
文献类型：期刊论文
| 作者 | Wang, LR; Lu, B; Liu, X; Shi, Y; Li, J; Liu, YX |
| 刊名 | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| 出版日期 | 2020-04-01 |
| 期号 | 4页码:1767 |
| ISSN号 | 0955-2219 |
| DOI | 10.1016/j.jeurceramsoc.2019.11.048 |
| 文献子类 | Article |
| 英文摘要 | Transparent Er2O3 ceramics were successfully fabricated via vacuum sintering for the first time, using low-temperature synthetic layered rare-earth hydroxide (LRH) as the precursor. The LRH exhibits single crystal structure and characteristic two-dimensional nanosheet morphology with a thickness of only similar to 10 nm. Calcining the LRH precursor at optimum temperature of 1000 degrees C yields a rounded fine oxide powder with an average particle size of similar to 35 nm and relatively uniform size distribution. With the sinterable oxide particle, the vacuum sintered Er2O3 ceramic has a relatively high transparency of 80 % at around 5.4 mu m (similar to 99 % of the theoretical value) and an average grain size of similar to 55 mu m. Under 980 nm laser excitation, the Er2O3 ceramic displays strong red emission at similar to 654-685 nm and weak green emission at similar to 553-565 nm arising from F-4(9/2)-> I-4(15/2) and (S3/2H11/2)-S-4-H-2 -> I-4(15/2) transitions, respectively. The intensities of red and green emissions rise along with increasing laser output powers, the upconversion mechanisms of which are both attributable to two-phonon processes. The CIE chromaticity diagrams move towards cooler tone from yellow to greenish-yellow colours with enhanced output powers. The lifetimes of the Er2O3 ceramic were determined to be similar to 13.0 and 8.4 mu s for the 684 and 565 nm emissions, respectively. |
| WOS关键词 | HIGHLY TRANSPARENT ; EMISSION ; GD ; ER ; HO |
| 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/331005/28195]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, LR,Lu, B,Liu, X,et al. Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2020(4):1767. |
| APA | Wang, LR,Lu, B,Liu, X,Shi, Y,Li, J,&Liu, YX.(2020).Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY(4),1767. |
| MLA | Wang, LR,et al."Fabrication and upconversion luminescence of novel transparent Er2O3 ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY .4(2020):1767. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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