Suppression of thermal conductivity in graphene nanoribbons with rough edges

Alexander V. Savin; Yuri S. Kivshar; Bambi Hu

doi:10.1103/PhysRevB.82.195422

Suppression of thermal conductivity in graphene nanoribbons with rough edges

Alexander V. Savin, Yuri S. Kivshar, Bambi Hu

Centre for Nonlinear Studies

Research output: Contribution to journal › Journal article › peer-review

189 Citations (Scopus)

Abstract

We analyze numerically thermal conductivity of graphene nanoribbons with perfect and rough edges. We demonstrate that edge roughness can suppress thermal conductivity by two orders of magnitude. This effect is associated with the edge-induced energy localization and suppression of the phonon transport, and it becomes more pronounced for longer nanoribbons and low temperatures.

Original language	English
Article number	195422
Number of pages	9
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.82.195422
Publication status	Published - 10 Nov 2010

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10.1103/PhysRevB.82.195422

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title = "Suppression of thermal conductivity in graphene nanoribbons with rough edges",

abstract = "We analyze numerically thermal conductivity of graphene nanoribbons with perfect and rough edges. We demonstrate that edge roughness can suppress thermal conductivity by two orders of magnitude. This effect is associated with the edge-induced energy localization and suppression of the phonon transport, and it becomes more pronounced for longer nanoribbons and low temperatures.",

author = "Savin, {Alexander V.} and Kivshar, {Yuri S.} and Bambi Hu",

note = "This work was supported by the Australian Research Council. Publisher copyright: {\textcopyright} 2010 The American Physical Society",

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AU - Kivshar, Yuri S.

AU - Hu, Bambi

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N2 - We analyze numerically thermal conductivity of graphene nanoribbons with perfect and rough edges. We demonstrate that edge roughness can suppress thermal conductivity by two orders of magnitude. This effect is associated with the edge-induced energy localization and suppression of the phonon transport, and it becomes more pronounced for longer nanoribbons and low temperatures.

AB - We analyze numerically thermal conductivity of graphene nanoribbons with perfect and rough edges. We demonstrate that edge roughness can suppress thermal conductivity by two orders of magnitude. This effect is associated with the edge-induced energy localization and suppression of the phonon transport, and it becomes more pronounced for longer nanoribbons and low temperatures.

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DO - 10.1103/PhysRevB.82.195422

M3 - Journal article

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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Suppression of thermal conductivity in graphene nanoribbons with rough edges

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