Ultraviolet luminescence in Mg0.12Zn0.88O alloy films

	Ultraviolet luminescence in Mg0.12Zn0.88O alloy films
其他题名	论文其他题名
	Wu C. X.; Lu Y. M.; Shen D. Z.; Wei Z. P.; Zhang Z. Z.; Li B. H.; Zhang J. Y.; Liu Y. C.; Fan X. W.
	2005
发表期刊	Chinese Physics Letters
ISSN	0256-307X
卷号	22 期号:10 页码:2655-2658
摘要	We investigate the origin of ultraviolet (UV) emission from Mg0.12Zn0.88O alloy thin films with a wurtzite structure fabricated on c-plane Al2O3 substrates by plasma assisted molecular beam epitaxy. At room temperature, the absorption edge and UV emission band of the Mg0.12Zn0.88O film shift to high-energy side compared with ZnO films. Temperature dependence of the photoluminescence spectra shows that the UV emission is composed of free exciton and neutral donor bound exciton emissions. Two-step dissociation processes of the UV emission are observed with the increasing temperature. The thermal quenching mechanism is attributed to the dissociation of the free exciton from the neutral donor bound exciton in the low temperature region and the dissociation of free electron and hole from the free exciton in the high temperature region.
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/181722/24980
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wu C. X.,Lu Y. M.,Shen D. Z.,et al. Ultraviolet luminescence in Mg0.12Zn0.88O alloy films[J]. Chinese Physics Letters,2005,22(10):2655-2658.
APA	Wu C. X..,Lu Y. M..,Shen D. Z..,Wei Z. P..,Zhang Z. Z..,...&Fan X. W..(2005).Ultraviolet luminescence in Mg0.12Zn0.88O alloy films.Chinese Physics Letters,22(10),2655-2658.
MLA	Wu C. X.,et al."Ultraviolet luminescence in Mg0.12Zn0.88O alloy films".Chinese Physics Letters 22.10(2005):2655-2658.

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