The mechanism of enhanced luminescence in ion-codoped Lu2SiO5: Ce3+ phosphors

	The mechanism of enhanced luminescence in ion-codoped Lu2SiO5: Ce3+ phosphors
	Liu, XL; Wu, F; Chen, SW; Gu, M; Chen, H; Liu, B; Huang, SM; Zhang, J; Zhang J(张静)
刊名	JOURNAL OF LUMINESCENCE
	2015
卷号	161 页码:422-425
关键词	Lu2SiO5:Ce Codopants Synchrotron radiation Luminescence
英文摘要	(Lu0.995-xMxCe0.005)(2)SiO5 (M=Li, Mg and Sc, x=0.00-0.01) phosphors were synthesized via a sol-gel technique, the luminescence enhancement effect by Li+, Mg2+, or Sc3+ codoping is comprehensively investigated by XRD, Raman, thermoluminescence and X-ray absorption near edge structure (XANES) spectra. The underlying reason of enhanced luminescence by ion codoping is revealed, and a mechanism of the luminescence enhancement effect based on the valence state variation of cerium is proposed. It can be safely concluded that the enhanced luminescence of Lu2SiO5:Ce3+ by ion codoping essentially originates from the increase in the population of Ce3+, which is directly proved by XANES. The difference in luminescence enhancement effect for different codopants can be reasonably explained by the electronegativity of the codopant. (C) 2015 Elsevier B.V. All rights reserved.
学科主题	Optics
类目[WOS]	Optics
收录类别	SCI ; EI
WOS记录号	WOS:000352663500065
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228326]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Liu, XL,Wu, F,Chen, SW,et al. The mechanism of enhanced luminescence in ion-codoped Lu2SiO5: Ce3+ phosphors[J]. JOURNAL OF LUMINESCENCE,2015,161:422-425.
APA	Liu, XL.,Wu, F.,Chen, SW.,Gu, M.,Chen, H.,...&张静.(2015).The mechanism of enhanced luminescence in ion-codoped Lu2SiO5: Ce3+ phosphors.JOURNAL OF LUMINESCENCE,161,422-425.
MLA	Liu, XL,et al."The mechanism of enhanced luminescence in ion-codoped Lu2SiO5: Ce3+ phosphors".JOURNAL OF LUMINESCENCE 161(2015):422-425.