Luminescence intensity of Ag+ doped Y2O3 : Eu nanocrystals

	Luminescence intensity of Ag+ doped Y2O3 : Eu nanocrystals
其他题名	论文其他题名
	Meng Q. Y.; Chen B. J.; Zhao X. X.; Yan B.; Wang X. J.; Xu W.
	2006
发表期刊	Acta Physica Sinica
ISSN	1000-3290
卷号	55 期号:5 页码:2623-2627
摘要	Eu3+ doped Y2O3 nanocrystalline and bulk powders with small content of Ag+ were prepared by chemical self- combustion. An interesting phenomenon was observed: with an increase in Ag+ content the luminescent intensity of the nanosized crystal is enhanced at first and then maintains a stable level; however for the bulk powder there is no obvious change in the luminescent intensity when the Ag+ content is varied. The morphology and crystal structure were characterized by transmission electron microscopy (TEM) and X-ray Diffraction (XRD), respectively. Emission spectra were measured for nano- and bulk samples. The fluorescence decay curves for all the samples, including nanosized and bulk ones, either with or without Ag+, were measured. It is found that the lifetime for the nanosized sample with Ag+ is longer than that without Ag+, and the lifetime for the bulk sample has no change. From these experimental results wecome to the conclusion that the Ag+ ion may link with a suffice O2-, which has a free bond, then the suffice unsaturated dangling bonds can be eliminated. The elimination of suffice dangling bonds may cause the increase of luminescence efficiency of Eu3+ doped nanosized Y2O3.
收录类别	SCI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25740
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Meng Q. Y.,Chen B. J.,Zhao X. X.,et al. Luminescence intensity of Ag+ doped Y2O3 : Eu nanocrystals[J]. Acta Physica Sinica,2006,55(5):2623-2627.
APA	Meng Q. Y.,Chen B. J.,Zhao X. X.,Yan B.,Wang X. J.,&Xu W..(2006).Luminescence intensity of Ag+ doped Y2O3 : Eu nanocrystals.Acta Physica Sinica,55(5),2623-2627.
MLA	Meng Q. Y.,et al."Luminescence intensity of Ag+ doped Y2O3 : Eu nanocrystals".Acta Physica Sinica 55.5(2006):2623-2627.

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