Electric field-induced unzipping of hydrogenated carbon nanotubes into graphene nanoribbons

Kyu Won Lee, Cheol Eui Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have investigated the electric field effect on horseshoe-shape carbon nanotubes (CNTs) resulting from hydrogen adsorption on the single-wall armchair (n,n)CNTs with 6 ≤ n ≤ 16 by using the density functional theory calculations. The horseshoe-shape CNT is completely unzipped into a graphene nanoribbon upon applying a critical electric field, which decreases with increasing CNT diameter, thus enabling one to select a nanoribbon width. A simple model based on the tensile force exerted on the tube walls by the applied electric field was introduced to understand the CNT-diameter dependence of the critical field.

Original languageEnglish
Pages (from-to)337-339
Number of pages3
JournalCurrent Applied Physics
Volume14
Issue number3
DOIs
Publication statusPublished - 2014 Mar 1

    Fingerprint

Keywords

  • Density functional theory
  • Graphene nanoribbons
  • Hydrogenated carbon nanotubes
  • Unzipping carbon nanotubes

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this