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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.