Site selective excitation in La2O3 : Eu3+ nanoparticles

	Site selective excitation in La2O3 : Eu3+ nanoparticles
其他题名	论文其他题名
	Chang J. J.; Xiong S.; Peng H. S.; Sun L. D.; Lu S. Z.; You F. T.; Huang S. H.
	2007
发表期刊	Journal of Luminescence
ISSN	0022-2313
卷号	122 页码:844-846
摘要	Eu3+ is a favorite fluorescence probe for studying local structure in solids. In this report, Eu3+ ions in La-O-2(3) nanoparticles were selectively excited; variation of the Eu emission spectra with the excitation wavelengths was observed. It was found that emission spectrum of the Eu ions near the center of the nanocrystals was similar to that of the bulk, where the Eu ions locate at the C-3v symmetry site. By tuning the excitation wavelength, Eu ions in the vicinity of the particle surface may be selectively excited. A gradual variation in emission line positions was observed. Moreover, surface provided an additional non-radiative transition route for the rare-earth fluorescence, shortening the 5 Do lifetime from 1.25 to 0.87ms. (c) 2006 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24906
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Chang J. J.,Xiong S.,Peng H. S.,et al. Site selective excitation in La2O3 : Eu3+ nanoparticles[J]. Journal of Luminescence,2007,122:844-846.
APA	Chang J. J..,Xiong S..,Peng H. S..,Sun L. D..,Lu S. Z..,...&Huang S. H..(2007).Site selective excitation in La2O3 : Eu3+ nanoparticles.Journal of Luminescence,122,844-846.
MLA	Chang J. J.,et al."Site selective excitation in La2O3 : Eu3+ nanoparticles".Journal of Luminescence 122(2007):844-846.

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