Synthesis and photoluminescence of ZnS : Cu nanoparticles

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	Synthesis and photoluminescence of ZnS : Cu nanoparticles
	Peng WQ (Peng W. Q.) ; Cong GW (Cong G. W.) ; Qu SC (Qu S. C.) ; Wang ZG (Wang Z. G.)
刊名	optical materials
	2006
卷号	29 期号:2-3 页码:313-317
关键词	zinc sulfide nanoparticles photoluminescence DOPED NANOCRYSTALS LUMINESCENCE ELECTRON
ISSN号	0925-3467
通讯作者	peng, wq, chinese acad sci, inst semicond, key lab semicond mat sci, pob 912, beijing 100083, peoples r china. e-mail: wqpeng@semi.ac.cn
中文摘要	the room-temperature photoluminescence (pl) of copper doped zinc sulfide (zns:cu) nanoparticles were investigated. these zns:cu nanoparticles were synthesized by a facile wet chemical method, with the copper concentration varying from 0 to 2 mol%. by gaussian fitting, the pl spectrum of the undoped zns nanoparticles was deconvoluted into two blue luminescence peaks (centered at 411 nm and 455 nm, respectively), which both can be attributed to the recombination of the defect sates of zns. but for the doped samples, a third peak at about 500 nm was also identified. this green luminescence originates from the recombination between the shallow donor level (sulfur vacancy) and the t(2) level of cu2+. with the increase of the cu2+ concentration, the green emission peak is systematically shifted to longer wavelength. in addition, it was found that the overall photoluminescence intensity is decreased at the cu2+ concentration of 2%. the concentration quenching of the luminescence may be caused by the formation of cus compound. (c) 2005 elsevier b.v. all rights reserved.
学科主题	半导体材料
收录类别	SCI
语种	英语
公开日期	2010-04-11
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/10268]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Peng WQ ,Cong GW ,Qu SC ,et al. Synthesis and photoluminescence of ZnS : Cu nanoparticles[J]. optical materials,2006,29(2-3):313-317.
APA	Peng WQ ,Cong GW ,Qu SC ,&Wang ZG .(2006).Synthesis and photoluminescence of ZnS : Cu nanoparticles.optical materials,29(2-3),313-317.
MLA	Peng WQ ,et al."Synthesis and photoluminescence of ZnS : Cu nanoparticles".optical materials 29.2-3(2006):313-317.