Change of the electronic conductivity of CNTs and graphene sheets caused by three-dimensional strain field

M. Ohnishi, H. Kawakami, Y. Suzuki, Ken Suzuki, Hideo Miura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, the change of the conductivity of carbon nanotubes (CNTs) and graphene nanoribbons (GNRs) under deformation was analyzed by applying a molecular dynamics and the density functional theory (DFT). Various combinations of double-walled CNT structures were modeled for the analysis. The change of the band structure was calculated by changing the amplitude of the applied strain. It was found in some cases that the band structure changes drastically from metallic structure to semiconducting structure, and this result clearly indicated that the electronic conductivity of this multi-walled CNT (MWCNT) decreased significantly in a three-dimensional strain field.

Original languageEnglish
Title of host publicationTechnical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
Pages260-263
Number of pages4
Publication statusPublished - 2012 Aug 20
EventNanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012 - Santa Clara, CA, United States
Duration: 2012 Jun 182012 Jun 21

Publication series

NameTechnical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

Other

OtherNanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
CountryUnited States
CitySanta Clara, CA
Period12/6/1812/6/21

Keywords

  • Carbon nanotube
  • Conductivity
  • DFT
  • Graphene nanoribbon
  • Strain

ASJC Scopus subject areas

  • Ceramics and Composites
  • Surfaces, Coatings and Films

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