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First-principles study of the size-dependent structural and electronic properties of thick-walled zno nanotubes
Xu, Hu3,4; Zhan, Fei5; Rosa, A. L.6; Frauenheim, Th.6; Zhang, R. Q.1,2,3
刊名Solid state communications
2008-12-01
卷号148期号:11-12页码:534-537
关键词A. nanotubes A. semiconductors D. electronic structure
ISSN号0038-1098
DOI10.1016/j.ssc.2008.09.056
通讯作者Zhang, r. q.(aprqz@cityu.edu.hk)
英文摘要The size dependence of atomic relaxations, formation energies, and electronic structures of hexagonal [0001] zinc oxide (zno) nanotubes with diameters of up to 2.3 nm were studied using density-functional calculations. the formation energies per zn-o pair in thick-walled hexagonal zno nanotubes were found to be mainly dependent on the wall thickness and not on the tube diameter. thick-walled zno nanotubes are energetically more favorable than single-walled zno nanotubes. all zno nanotubes were found to be semiconducting, with band gaps larger than that of bulk zno. it was also found that the wall thickness of zno nanotubes strongly affects their shapes and the energies of the conduction bands, rather than their valence band maxima. (c) 2008 elsevier ltd. all rights reserved.
WOS关键词ZINC-OXIDE ; FABRICATION ; NANOCABLES ; TRANSITION ; ROUTE
WOS研究方向Physics
WOS类目Physics, Condensed Matter
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000261587600012
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2373667
专题物理研究所
通讯作者Zhang, R. Q.
作者单位1.City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Hong Kong, Hong Kong, Peoples R China
2.City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China
3.Chinese Acad Sci, Tech Inst Phys & Chem, Nanoorgan Photoelect Lab, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100101, Peoples R China
5.Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
6.Univ Bremen, BCCMS, D-28359 Bremen, Germany
推荐引用方式
GB/T 7714
Xu, Hu,Zhan, Fei,Rosa, A. L.,et al. First-principles study of the size-dependent structural and electronic properties of thick-walled zno nanotubes[J]. Solid state communications,2008,148(11-12):534-537.
APA Xu, Hu,Zhan, Fei,Rosa, A. L.,Frauenheim, Th.,&Zhang, R. Q..(2008).First-principles study of the size-dependent structural and electronic properties of thick-walled zno nanotubes.Solid state communications,148(11-12),534-537.
MLA Xu, Hu,et al."First-principles study of the size-dependent structural and electronic properties of thick-walled zno nanotubes".Solid state communications 148.11-12(2008):534-537.
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