Site selective excitation in La2O3:Eu3+ nanoparticles

doi:10.1016/j.jlumin.2006.01.305

CORC > 北京大学 > 化学与分子工程学院

	Site selective excitation in La2O3:Eu3+ nanoparticles
	Chang, Jianjun ; Xiong, Sha ; Peng, Hongshang ; Sun, Lingdong ; Lu, Shaozhe ; You, Fangtian ; Huang, Shihua
刊名	Journal of Luminescence
	2007
DOI	10.1016/j.jlumin.2006.01.305
英文摘要	Eu3+ is a favorite fluorescence probe for studying local structure in solids. In this report, Eu3+ ions in La2O3 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 C3v 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 5D0 lifetime from 1.25 to 0.87 ms. ? 2006 Elsevier B.V. All rights reserved.; EI; 1-2; 844-846; 122-123
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/461210]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Chang, Jianjun,Xiong, Sha,Peng, Hongshang,et al. Site selective excitation in La2O3:Eu3+ nanoparticles[J]. Journal of Luminescence,2007.
APA	Chang, Jianjun.,Xiong, Sha.,Peng, Hongshang.,Sun, Lingdong.,Lu, Shaozhe.,...&Huang, Shihua.(2007).Site selective excitation in La2O3:Eu3+ nanoparticles.Journal of Luminescence.
MLA	Chang, Jianjun,et al."Site selective excitation in La2O3:Eu3+ nanoparticles".Journal of Luminescence (2007).