Optical Properties of ZnMgO Nanowalls Grown by Plasma-Assisted Molecular Beam Epitaxy

	Optical Properties of ZnMgO Nanowalls Grown by Plasma-Assisted Molecular Beam Epitaxy
	Su S. C.; Lu Y. M.; Zhang Z. Z.; Shan C. X.; Li B. H.; Shen D. Z.; Yao B.; Zhang J. Y.; Zhao D. X.; Fan X. W.
	2010
发表期刊	Journal of Nanoscience and Nanotechnology
ISSN	1533-4880
卷号	10 期号:3 页码:1681-1684
摘要	ZnMgO nanowalls were prepared by plasma-assisted molecular beam epitaxy without a catalyst on c-Al(2)O(3) substrate. The obtained nanowalls have preferred orientation along c axis. The nanowalls are about 10 to 20 nm in thickness and about 50 nm in height. Only Zn, Mg, 0 and Al signals are detected in the nanowalls from the energy dispersive spectroscopy (EDS). The Mg content is about 3% in ZnMgO nanowalls. The room temperature photoluminescence (PL) spectra shows the emission peak of the ZnMgO nanowalls at 3.346 eV. The origin of the ultraviolet emission is discussed with the help of temperature-dependent PL spectra. The ultraviolet emission band is free exiton recombination observed in the low temperature PL spectra (at 81 K). We also observe the free-to-acceptor (FA) emission of the ZnMgO nanowalls. The acceptor binding energy obtained from photoluminescence studies is about 123 meV. The results show that Mg doping leads to an increase of the acceptor binding energy. The possible growth mechanism of the ZnMgO nanowall networks was discussed.
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/181722/34548
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Su S. C.,Lu Y. M.,Zhang Z. Z.,et al. Optical Properties of ZnMgO Nanowalls Grown by Plasma-Assisted Molecular Beam Epitaxy[J]. Journal of Nanoscience and Nanotechnology,2010,10(3):1681-1684.
APA	Su S. C..,Lu Y. M..,Zhang Z. Z..,Shan C. X..,Li B. H..,...&Fan X. W..(2010).Optical Properties of ZnMgO Nanowalls Grown by Plasma-Assisted Molecular Beam Epitaxy.Journal of Nanoscience and Nanotechnology,10(3),1681-1684.
MLA	Su S. C.,et al."Optical Properties of ZnMgO Nanowalls Grown by Plasma-Assisted Molecular Beam Epitaxy".Journal of Nanoscience and Nanotechnology 10.3(2010):1681-1684.

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