Influencing range of vacancy defects in zigzag single-walled carbon nanotubes

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Title:	Influencing range of vacancy defects in zigzag single-walled carbon nanotubes
Authors:	Luo, Yu-Pin;Tien, Li-Gan;Lee, Ming-Hsien;Li, Feng-Yin
Contributors:	淡江大學物理學系
Keywords:	single-walled carbon nanotube;vacancy defect
Date:	2010-02
Issue Date:	2012-06-14 09:24:04 (UTC+8)
Publisher:	Bristol: Institute of Physics Publishing Ltd.
Abstract:	The influencing range of a vacancy defect in a zigzag single-walled nanotube is characterized with both structural deformation and variation in bandstructure. This paper proposes a microscopic explanation to relate the structural deformation to the bandstructure variation. With an increasing defect density, the nanotubes become oblate and the energy gap between the deep localized gap state and the conducting band minimum state decreases. Theoretical results shed some light on the local energy gap engineering via vacancy density for future potential applications.
Relation:	Chinese Physics B 19(2), 027102(5pages)
DOI:	10.1088/1674-1056/19/2/027102
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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