Eu2+-Activated Ca8Zn(SiO4)(4)Cl-2: An Intense Green Emitting Phosphor for Blue Light Emitting Diodes

	Eu2+-Activated Ca8Zn(SiO4)(4)Cl-2: An Intense Green Emitting Phosphor for Blue Light Emitting Diodes
其他题名	论文其他题名
	Lu W.; Hao Z. D.; Zhang X.; Liu Y. F.; Luo Y. S.; Liu X. Y.; Wang X. J.; Zhang J. H.
	2011
发表期刊	Journal of the Electrochemical Society
ISSN	0013-4651
卷号	158 期号:2 页码:H124-H127
摘要	We report intense green luminescence upon blue light excitation in Eu2+-activated Ca8Zn(SiO4)(4)Cl-2 prepared by high temperature solid state reaction with nominal composition of (2 - x)CaO-xZnO-SiO2-CaCl2 (0 <= x <= 1.1). It is observed that the material phase gradually converts from Ca3SiO4Cl2:Eu2+ to Ca8Zn(SiO4)(4)Cl-2:Eu2+ followed by improved luminescent properties with increasing x. The two phosphors both emit with a maximum at 505 nm. Significantly, Ca8Zn(SiO4)(4)Cl-2:Eu2+ shows a more intense excitation band in the blue centered at 450 nm. Upon 450 nm excitation, the integrated emission intensity of Ca8Zn(SiO4)(4)Cl-2: Eu2+ is 1.3 times stronger Ca8Mg(SiO4)(4)Cl-2:Eu2+ and nearly the same as Ca3Sc2Si3O12:Ce3+ phosphors. Attempts to understand the origins of the intense luminescence are presented on the basis of diffuse reflection spectra and fluorescence decays of Ca8Zn(SiO4)(4)Cl-2:Eu2+ in comparison with related phosphors. The present results suggest that Ca8Zn(SiO4)(4)Cl-2:Eu2+ could be a promising green emitting phosphor for excitation by blue light emitting diodes. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3518763] 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/181722/24706
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Lu W.,Hao Z. D.,Zhang X.,et al. Eu2+-Activated Ca8Zn(SiO4)(4)Cl-2: An Intense Green Emitting Phosphor for Blue Light Emitting Diodes[J]. Journal of the Electrochemical Society,2011,158(2):H124-H127.
APA	Lu W..,Hao Z. D..,Zhang X..,Liu Y. F..,Luo Y. S..,...&Zhang J. H..(2011).Eu2+-Activated Ca8Zn(SiO4)(4)Cl-2: An Intense Green Emitting Phosphor for Blue Light Emitting Diodes.Journal of the Electrochemical Society,158(2),H124-H127.
MLA	Lu W.,et al."Eu2+-Activated Ca8Zn(SiO4)(4)Cl-2: An Intense Green Emitting Phosphor for Blue Light Emitting Diodes".Journal of the Electrochemical Society 158.2(2011):H124-H127.

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