Electronic structure and luminescent properties of Ca-5(PO4)(2)(SiO4):Eu2+ green-emitting phosphor for white light emitting diodes

	Electronic structure and luminescent properties of Ca-5(PO4)(2)(SiO4):Eu2+ green-emitting phosphor for white light emitting diodes
	Yu H ; Deng DG ; Li YQ ; Xu SQ ; Li YY ; Yu CP ; Ding YY ; Lu HW ; Yin HY ; Nie QL
刊名	optics communications
	2013
卷号	289 页码:103-108
关键词	ENERGY-TRANSFER LEDS LA
ISSN号	0030-4018
通讯作者	yu h
中文摘要	a green-emitting phosphor, eu2+-activated ca-5(po4)(2)(sio4) phosphor was synthesized by conventional solid-state reaction. x-ray powder diffraction (xrd) and ft-ir spectra analysis confirmed the phase formation. the calculated band structure shows that ca-5(po4)(2)(sio4) is an insulator with a band gap approximate to 4.98 ev, which is close to the experimental value approximate to 5.16 ev from the diffuse reflection spectrum. the photoluminescence excitation and emission spectra, the concentration dependence of the emission intensity and decay curves of the phosphor were investigated. the results showed that ca-5(po4)(2)(sio4):eu2+ could be efficiently excited by uv chips (360-400 nm) and eu2+ has three emission centers in ca-5(po4)(2)(sio4). the nature of the eu2+ emission in ca-5(po4)(2)(sio4), e.g. the major mechanism for concentration quenching were discussed in order to further investigate the potential application for white light-emitting diodes (led). (c) 2012 elsevier b.v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000312233800017
公开日期	2014-04-16
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/50041]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Yu H,Deng DG,Li YQ,et al. Electronic structure and luminescent properties of Ca-5(PO4)(2)(SiO4):Eu2+ green-emitting phosphor for white light emitting diodes[J]. optics communications,2013,289:103-108.
APA	Yu H.,Deng DG.,Li YQ.,Xu SQ.,Li YY.,...&Nie QL.(2013).Electronic structure and luminescent properties of Ca-5(PO4)(2)(SiO4):Eu2+ green-emitting phosphor for white light emitting diodes.optics communications,289,103-108.
MLA	Yu H,et al."Electronic structure and luminescent properties of Ca-5(PO4)(2)(SiO4):Eu2+ green-emitting phosphor for white light emitting diodes".optics communications 289(2013):103-108.