Nanostructural instability of single-walled carbon nanotubes during electron beam induced shrinkage

被引：25
|
作者：
Zhu, Xianfang [1 ,2 ,3 ,4 ]
Li, Lunxiong [1 ,2 ]
Huang, Shengli [1 ,2 ]
Wang, Zhanguo [3 ]
Lu, Gao Qing [1 ,2 ,4 ]
Sun, Chenghua [1 ,2 ,4 ,5 ]
Wang, Lianzhou [1 ,2 ,4 ]
机构：
[1] Xiamen Univ, China Australia Joint Lab Funct Nanomat, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China
[3] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
[4] Univ Queensland, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia
[5] Univ Queensland, Ctr Computat Mol Sci, Brisbane, Qld 4072, Australia
来源：
CARBON | 2011年 / 49卷 / 09期
关键词：
NANOCAVITY;
D O I：
10.1016/j.carbon.2011.03.035
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The diameter of a single-walled carbon nanotube shrunk at an increasingly faster rate under electron beam irradiation in a transmission electron microscope. The relationship between the radius of the single-walled carbon nanotube and the irradiation time demonstrates that the shrinkage is much faster than that predicted by current simulations. The results indicate that a curvature effect on the nanoscale and an energetic beam-induced soft mode and lattice instability effect, which were underestimated or neglected in the existing simulations are the primary driving force for the shrinkage. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3120 / 3124
页数：5
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