吴国强

个人信息Personal Information

副教授

硕士生导师

性别:男

毕业院校:哈尔滨工业大学

学位:博士

所在单位:力学与航空航天学院

联系方式:13322208037

电子邮箱:gqwu@dlut.edu.cn

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Effect of Tensile Strain on Thermal Conductivity in Monolayer Graphene Nanoribbons: A Molecular Dynamics Study

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论文类型:期刊论文

发表时间:2013-07-01

发表刊物:SENSORS

收录刊物:SCIE、EI、PubMed、Scopus

卷号:13

期号:7

页面范围:9388-9395

ISSN号:1424-8220

关键字:graphene nanoribbons; thermal conductivity; phonon

摘要:The thermal conductivity of monolayer graphene nanoribbons (GNRs) with different tensile strain is investigated by using a nonequilibrium molecular dynamics method. Significant increasing amplitude of the molecular thermal vibration, molecular potential energy vibration and thermal conductivity vibration of stretching GNRs were detected. Some 20%approximate to 30% thermal conductivity decay is found in 9%approximate to 15% tensile strain of GNR cases. It is explained by the fact that GNR structural ridges scatter some low-frequency phonons which pass in the direction perpendicular to the direction of GNR stretching which was indicated by a phonon density of state investigation.