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

Kyu Won Lee; Cheol Eui Lee

doi:10.1016/j.cap.2013.12.015

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

Kyu Won Lee, Cheol Eui Lee

Department of Physics

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	337-339
Number of pages	3
Journal	Current Applied Physics
Volume	14
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2013.12.015
Publication status	Published - 2014 Mar

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (No. 2013057555 , 2012034779 , and NRF-2010-0027963 ). K.W.L. was supported by a Korea University Grant .

Keywords

Density functional theory
Graphene nanoribbons
Hydrogenated carbon nanotubes
Unzipping carbon nanotubes

ASJC Scopus subject areas

General Materials Science
General Physics and Astronomy

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10.1016/j.cap.2013.12.015

Cite this

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title = "Electric field-induced unzipping of hydrogenated carbon nanotubes into graphene nanoribbons",

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.",

keywords = "Density functional theory, Graphene nanoribbons, Hydrogenated carbon nanotubes, Unzipping carbon nanotubes",

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AU - Lee, Cheol Eui

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AB - 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.

KW - Density functional theory

KW - Graphene nanoribbons

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KW - Unzipping carbon nanotubes

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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