Tunable deformation and electronic properties of single-walled ZnO nanotubes under a transverse electric field

被引：9

作者：

Wang, Yanzong ^{[1
,2
]}

Wang, Baolin ^{[3
]}

Zhang, Qinfang ^{[3
,4
,5
]}

Zhao, Jijun ^{[6
]}

Shi, Daning ^{[1
]}

Yunoki, Seiji ^{[4
,5
]}

Kong, Fanjie ^{[7
]}

Xu, Ning ^{[7
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Dept Phys, Nanjing 210016, Peoples R China

[2] Huaiyin Inst Technol, Dept Phys, Huaian 223003, Jiangsu, Peoples R China

[3] Yancheng Inst Technol, Key Lab Adv Technol Environm Protect Jiangsu Prov, Yancheng 224051, Peoples R China

[4] RIKEN ASI, Computat Condensed Matter Phys Lab, Wako, Saitama 3510198, Japan

[5] Japan Sci & Technol Agcy JST, CREST, Kawaguchi, Saitama 3320012, Japan

[6] Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China

[7] Yancheng Inst Technol, Dept Phys, Yancheng 224051, Jiangsu, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 07期

基金：

中国国家自然科学基金;

关键词：

CARBON NANOTUBES; MODULATIONS; ARRAYS; GAP;

D O I：

10.1063/1.3699311

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of the electric field on the radial deformation and electronic properties of armchair and zigzag single-walled ZnO nanotubes are investigated by the density functional theory. Under the transverse electric field, the circular cross-sections of ZnO nanotubes are deformed to elliptic. In addition, the bandgap of ZnO nanotube gradually reduced with the increasing electric field strength. Such field-induced modulation effect is enhanced in ZnO nanotubes with larger tube diameter, but is not sensitive to the chirality. The mechanisms of the radial deformation and the variations of bandgaps of the ZnO nanotubes are analyzed. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3699311]

引用

页数：5

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