Structural and excitation dependent emission properties of octahedral CeO2:Er(3+)nanocrystal

doi:10.1016/j.jlumin.2019.05.009

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	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
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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