Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Structural and excitation dependent emission properties of octahedral CeO2:Er(3+)nanocrystal | |
Y.Yang; Y.Cong; D.P.Dong; Y.Xiao; J.Y.Shang; Y.Tong | |
2019 | |
发表期刊 | Journal of Luminescence
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ISSN | 0022-2313 |
卷号 | 213页码:427-432 |
摘要 | Octahedral CeO2:Er3+ nanocrystals were successfully prepared using a simple hydrothermal method, and the structural and excitation dependent emission properties were investigated in detail. Green ( (2) H-11/2,S- 4(3/2) -> I-4(15/2)), red ( F-4(9/2) -> I-4(15/2)) and NIR (I-4(11/2) -> I-4(15/2) and I-4(13/2) -> I-4(15/2)) emission were observed under 980 nm laser diode excitation. The optimal Er3+ doping concentration was 3 mol%, and the effect of Li+ co-dopants with concentration up to 10 mol% on microstructure and emission was investigated. However, for the samples excited under 352 nm down-conversion excitation, the Vis-NIR spectral distribution induced distinct changes related to the excitation mode. Remarkably high enhancement of 1532 nm NIR emission about 12 times was achieved by codoping with Li+ ions, which make CeO2:Er3+ ,Li+ nanocrystal a promising candidate for optical amplifier using broadband UV pumping. The possible mechanism of above up-and down-conversion emission and energy transfer process has also been discussed. |
关键词 | Luminescence,CeO2:Er3+,Nanocrystals,Li+ codoping,up-conversion luminescence,infrared-emission,energy-transfer,ceo2,photoluminescence,nanocrystals,enhancement,ions,Optics |
DOI | 10.1016/j.jlumin.2019.05.009 |
收录类别 | SCI ; EI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/62869 |
专题 | 中国科学院长春光学精密机械与物理研究所 |
推荐引用方式 GB/T 7714 | Y.Yang,Y.Cong,D.P.Dong,et al. Structural and excitation dependent emission properties of octahedral CeO2:Er(3+)nanocrystal[J]. Journal of Luminescence,2019,213:427-432. |
APA | Y.Yang,Y.Cong,D.P.Dong,Y.Xiao,J.Y.Shang,&Y.Tong.(2019).Structural and excitation dependent emission properties of octahedral CeO2:Er(3+)nanocrystal.Journal of Luminescence,213,427-432. |
MLA | Y.Yang,et al."Structural and excitation dependent emission properties of octahedral CeO2:Er(3+)nanocrystal".Journal of Luminescence 213(2019):427-432. |
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