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Lattice thermal conductivity of graphene nanostructures
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Saiz-Bretín, Marta, Malyshev, A.V., Domínguez-Adame, F., Quigley, David and Römer, Rudolf A. (2018) Lattice thermal conductivity of graphene nanostructures. Carbon, 127 . pp. 64-69. doi:10.1016/j.carbon.2017.10.048 ISSN 0008-6223.
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Official URL: http://dx.doi.org/10.1016/j.carbon.2017.10.048
Abstract
Non-equilibrium molecular dynamics is used to investigate the heat current due to the atomic lattice vibrations in graphene nanoribbons and nanorings under a thermal gradient. We consider a wide range of temperature, nanoribbon widths up to 6 nm and the effect of moderate edge disorder. We find that narrow graphene nanorings can efficiently suppress the lattice thermal conductivity at low temperatures (), as compared to nanoribbons of the same width. Remarkably, rough edges do not appear to have a large impact on lattice energy transport through graphene nanorings while nanoribbons seem more affected by imperfections. Furthermore, we demonstrate that the effects of hydrogen-saturated edges can be neglected in these graphene nanostructures.
Item Type: | Journal Article | ||||||||||||
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Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||
Library of Congress Subject Headings (LCSH): | Graphene, Nanostructures, Thermal conductivity | ||||||||||||
Journal or Publication Title: | Carbon | ||||||||||||
Publisher: | Pergamon | ||||||||||||
ISSN: | 0008-6223 | ||||||||||||
Official Date: | February 2018 | ||||||||||||
Dates: |
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Volume: | 127 | ||||||||||||
Page Range: | pp. 64-69 | ||||||||||||
DOI: | 10.1016/j.carbon.2017.10.048 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||
Date of first compliant deposit: | 31 January 2019 | ||||||||||||
Date of first compliant Open Access: | 31 January 2019 | ||||||||||||
RIOXX Funder/Project Grant: |
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