Molecular dynamics study on vibrational properties of graphene nanoribbon resonator under tensile loading

被引:24
作者
Kang, Jeong Won [1 ]
Hwang, Ho Jung [2 ]
Kim, Ki-Sub [3 ]
机构
[1] Korea Natl Univ Transportat, Dept Comp Engn, Chungju 380702, South Korea
[2] Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South Korea
[3] Korea Natl Univ Transportat, Dept Chem & Biol Engn, Chungju 380702, South Korea
关键词
Molecular dynamics; Graphene; Graphene ribbon resonator; MECHANICAL-PROPERTIES; ELASTIC PROPERTIES; CARBON-NANOTUBE; RIBBONS; STATE; TRANSISTORS; SYSTEMS; SHEETS; EDGE; SIZE;
D O I
10.1016/j.commatsci.2012.07.027
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We investigated the tension and strain energy variations as a function of the axial strain in static conditions in graphene nanoribbon resonators and the resonance frequency change with tensile loading in dynamic conditions via classical molecular dynamics simulations. This theoretical study presents the application of graphene nanoribbon resonators tuned by tensile loading as ultrahigh frequency devices. The non-linear mechanical properties of the resonators were found, and for small axial strains, the mechanical properties of the graphene nanoribbon, such as strain-energy vs. axial-strain and frequency vs. strain or tension, were estimated by the classical continuum theory. The resonance frequencies increased with increasing axial strain, and such a relation could be regressed by a linearly increasing line on a log-log scale. The increasing resonance frequency due to increasing tension could be regressed by a square root function. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:216 / 220
页数:5
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