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Indexed by:期刊论文

Date of Publication:2013-07-01

Journal:SENSORS

Included Journals:SCIE、EI、PubMed、Scopus

Volume:13

Issue:7

Page Number:9388-9395

ISSN No.:1424-8220

Key Words:graphene nanoribbons; thermal conductivity; phonon

Abstract: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.