Engineering of optically defect free Cu2O enabling exciton luminescence at room temperature

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	Engineering of optically defect free Cu2O enabling exciton luminescence at room temperature
	Li, JQ ; Mei, ZX ; Ye, DQ ; Liang, HL ; Liu, LS ; Liu, YP ; Galeckas, A ; Kuznetsov, AY ; Du, XL
刊名	OPTICAL MATERIALS EXPRESS
	2013
卷号	3 期号:12 页码:2072
ISSN号	2159-3930
通讯作者	Li, JQ (reprint author), Chinese Acad Sci, Inst Phys, Key Lab Renewable Energy, Beijing 100190, Peoples R China.
中文摘要	Cu2O is an interesting semiconductor with extraordinary high exciton binding energy, however exhibiting weak room temperature excitonic luminescence. The issue was addressed in literature emphasizing a detrimental role of native point defects responsible for optical quenching. Resolving the problem, we propose a method to manipulate the Cu and O vacancies contents opening a gateway for optoelectronic applications of Cu2O. Specifically, applying oxygen lean conditions, we observe a remarkable suppression of V-Cu enabling strong room temperature exciton luminescence, while manipulating with V-O reveals no impact on the signal. As a result, the excitonic signature was interpreted in terms of phonon assisted transitions. (C) 2013 Optical Society of America
资助信息	Ministry of Science and Technology of China [2011CB302002, 2011CB302006, 2009CB929404]; National Science Foundation [61076007, 11174348, 51272280, 11274366, 61204067]; Chinese Academy of Sciences; Research Council of Norway
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56967]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Li, JQ,Mei, ZX,Ye, DQ,et al. Engineering of optically defect free Cu2O enabling exciton luminescence at room temperature[J]. OPTICAL MATERIALS EXPRESS,2013,3(12):2072.
APA	Li, JQ.,Mei, ZX.,Ye, DQ.,Liang, HL.,Liu, LS.,...&Du, XL.(2013).Engineering of optically defect free Cu2O enabling exciton luminescence at room temperature.OPTICAL MATERIALS EXPRESS,3(12),2072.
MLA	Li, JQ,et al."Engineering of optically defect free Cu2O enabling exciton luminescence at room temperature".OPTICAL MATERIALS EXPRESS 3.12(2013):2072.