Deformation of Metallic Single-Walled Carbon Nanotubes in the Electric Field Based on Elastic Theory

HONG Wen-liang; GUO Xing-ming

doi:10.3879/j.issn.1000-0887.2010.03.001

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HONG Wen-liang, GUO Xing-ming. Deformation of Metallic Single-Walled Carbon Nanotubes in the Electric Field Based on Elastic Theory[J]. Applied Mathematics and Mechanics, 2010, 31(3): 253-260. doi: 10.3879/j.issn.1000-0887.2010.03.001

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Deformation of Metallic Single-Walled Carbon Nanotubes in the Electric Field Based on Elastic Theory

doi: 10.3879/j.issn.1000-0887.2010.03.001

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P. R. China

Received Date: 1900-01-01
Rev Recd Date: 2010-02-04
Publish Date: 2010-03-15

Abstract

Abstract

The electromechanical properties of metallic single-walled carbon nanotubes (SWCNTs) in the electric field are demonstrated via a column shell model. A model of hemisphere was in troduced to determine the charge distribution and localelectric field on SWCNTs. It is shown that, regarding the SWCNT's an elastic column shell, the analytical solutions of charged SWCNT's axial strain and radial strain are obtained. Single-walled carbon nanotubes with higher aspectratio can show greater deformation and the greatestradial deformation appears at the end of the tube, and significant axial strain can be induced in CNTs with long length (around 100 nm) even though the applied electric field is not strong enough; when the SWCNTs are fixed at both ends the radius of SWCNTs become smaller along axial position. These results redound to our understanding of metallic SWCNTs electrom echanical properties in the electric field and SWCNTs applications on nanoelectronic device and nanoelectrom echanical systems.
- single-walled carbon nanotubes,
- charged deformation,
- analytis solution

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References(18)

References

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