Abnormal blueshift of UV emission in single-crystalline ZnO nanowires

	Abnormal blueshift of UV emission in single-crystalline ZnO nanowires
其他题名	论文其他题名
	Wang D. D.; Yang J. H.; Xing G. Z.; Yang L. L.; Lang J. H.; Gao M.; Yao B.; Wu T.
	2009
发表期刊	Journal of Luminescence
ISSN	0022-2313
卷号	129 期号:9 页码:996-999
摘要	Single-crystalline ZnO nanowires (NWs) were synthesized by a facile vapor transport method. The good orientation and high crystal quality were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and high-resolution transmission electron microscope (HRTEM) measurements. Excitation-power-dependence photoluminescence spectra of ZnO NWs show that the UV emission displayed an evident blueshift with increasing excitation power and the corresponding energy shift might be as large as 10 meV. This anomalous phenomenon correlates to the band bending level caused by the surface built-in electric field due to the existence of substantial oxygen vacancies. By increasing the excitation power, the enhanced neutralization effect near the surface will reduce the built-in electric field and lead to a reduction of band bending which triggers the blueshift of the UV emission. (C) 2009 Elsevier B.V. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26003
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang D. D.,Yang J. H.,Xing G. Z.,et al. Abnormal blueshift of UV emission in single-crystalline ZnO nanowires[J]. Journal of Luminescence,2009,129(9):996-999.
APA	Wang D. D..,Yang J. H..,Xing G. Z..,Yang L. L..,Lang J. H..,...&Wu T..(2009).Abnormal blueshift of UV emission in single-crystalline ZnO nanowires.Journal of Luminescence,129(9),996-999.
MLA	Wang D. D.,et al."Abnormal blueshift of UV emission in single-crystalline ZnO nanowires".Journal of Luminescence 129.9(2009):996-999.

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