TY - JOUR
T1 - Electric field-induced unzipping of hydrogenated carbon nanotubes into graphene nanoribbons
AU - Lee, Kyu Won
AU - Lee, Cheol Eui
N1 - 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 .
PY - 2014/3
Y1 - 2014/3
N2 - 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.
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
KW - Hydrogenated carbon nanotubes
KW - Unzipping carbon nanotubes
UR - http://www.scopus.com/inward/record.url?scp=84891808976&partnerID=8YFLogxK
U2 - 10.1016/j.cap.2013.12.015
DO - 10.1016/j.cap.2013.12.015
M3 - Article
AN - SCOPUS:84891808976
SN - 1567-1739
VL - 14
SP - 337
EP - 339
JO - Current Applied Physics
JF - Current Applied Physics
IS - 3
ER -