Temperature dependence of luminescence spectra and dynamics of Y2O3 : Eu3+ nanocrystals

	Temperature dependence of luminescence spectra and dynamics of Y2O3 : Eu3+ nanocrystals
其他题名	论文其他题名
	Peng H. S.; Song H. W.; Chen B. J.; Wang J. W.; Lu S. Z.; Kong X. G.; Li D. C.
	2002
发表期刊	Acta Physica Sinica
ISSN	1000-3290
卷号	51 期号:12 页码:2875-2880
摘要	We analyze the factors which affect D-5(o)-->F-7(2) luminescence intensity under the excitation of the 488nm light, and establish formulas accordingly. By fitting the experiment data, we find the temperature quenching rate of nanocrystals is faster than that of the bulk. We obtain the linewidth of D-5(o)-->F-7(2) emission spectra Of Y2O3 : Eu3+ at different temperature, and explain the difference between the nanocrystals and the bulk. using the internal stress and quantum confinement effect. Under the excitation of the 355nm light, we have measured the lifetimes of D-5(0) energy level Of Y2O3 : Eu3+, which change with temperature. According to the fitting results, we draw the conclusion that, in contrast with the bulk, both the radiation rate and non-radiation rate of the nanocrystals have increased, while the quantum efficiency has decreased. We suggest that the possible reasons are lattice distortion and surface effect.
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/181722/25850
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Peng H. S.,Song H. W.,Chen B. J.,et al. Temperature dependence of luminescence spectra and dynamics of Y2O3 : Eu3+ nanocrystals[J]. Acta Physica Sinica,2002,51(12):2875-2880.
APA	Peng H. S..,Song H. W..,Chen B. J..,Wang J. W..,Lu S. Z..,...&Li D. C..(2002).Temperature dependence of luminescence spectra and dynamics of Y2O3 : Eu3+ nanocrystals.Acta Physica Sinica,51(12),2875-2880.
MLA	Peng H. S.,et al."Temperature dependence of luminescence spectra and dynamics of Y2O3 : Eu3+ nanocrystals".Acta Physica Sinica 51.12(2002):2875-2880.

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