Observation and Novel Explanation of Instability of Single Wall Carbon Nanotube

Author

Zhu, Xianfang ; Meng, Tao ; Li, Lunxiong ; Wang, Zhanguo ; Zhou, Huihua ; Shen, Yutian

Author_Institution

Lab. of Low Dimensional Nanostructures, Xiamen Univ.

fYear

2006

fDate

18-21 Jan. 2006

Firstpage

462

Lastpage

465

Abstract

Structural instability of single wall carbon nanotube under electron beam irradiation was investigated by our developed in-situ transmission electron microscopy observation technique. It was observed that the nanotube shrunk and necked in diameter gradually and the curved nanotube shrunk faster in axis direction than straight one with increasing of electron dose during the irradiation. Such athermally induced structural instabilities can be well accounted for by completely new concepts of the nano curvature and the energetic beam-induced soft mode and lattice instability as we recently proposed

Keywords

carbon nanotubes; electron beam effects; lattice dynamics; necking; shrinkage; soft modes; transmission electron microscopy; C; SWNT structural instability; TEM; athermally induced structural instabilities; electron beam irradiation; energetic beam induced lattice instability; energetic beam induced soft mode instability; nanocurvature; nanotube necking; nanotube shrinking; single wall carbon nanotube; transmission electron microscopy; Carbon nanotubes; Electron beams; Laboratories; Lattices; Physics; Semiconductor materials; Semiconductor nanostructures; Shape; Systems engineering and theory; Transmission electron microscopy; SWNT instability; beam-induced soft mode and lattice instability; electron beam irradiation; in-situ TEM observation; nanocurvature;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on

Conference_Location

Zhuhai

Print_ISBN

1-4244-0139-9

Electronic_ISBN

1-4244-0140-2

Type

conf

DOI

10.1109/NEMS.2006.334800

Filename

4134995