Layer and size dependence of thermal conductivity in multilayer graphene nanoribbons

Hai Yuan Cao; Zhi Xin Guo; Hongjun Xiang; Xin Gao Gong

doi:10.1016/j.physleta.2011.11.016

Layer and size dependence of thermal conductivity in multilayer graphene nanoribbons

Hai Yuan Cao
, Zhi Xin Guo
, Hongjun Xiang
, Xin Gao Gong

Fudan University
XiangTan University

Research output: Contribution to journal › Article › peer-review

115 Scopus citations

Abstract

Using nonequilibrium molecular dynamics method (NEMD), we have found that the thermal conductivity of multilayer graphene nanoribbons monotonously decreases with the increase of the number of layers which can be attributed to the phonon resonance effect of out-of-plane phonon modes. The reduction of thermal conductivity is proportional to the layer size, which is caused by the increase of phonon resonance. The results clearly show the dimensional evolution of thermal conductivity from quasi-one dimension to higher dimensions in graphene nanoribbons.

Original language	English
Pages (from-to)	525-528
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	376
Issue number	4
DOIs	https://doi.org/10.1016/j.physleta.2011.11.016
State	Published - 9 Jan 2012
Externally published	Yes

Keywords

Multilayer graphene nanoribbon
Nonequilibrium molecular dynamics
Phonon coupling
Size effect
Thermal conductivity

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10.1016/j.physleta.2011.11.016

Cite this

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title = "Layer and size dependence of thermal conductivity in multilayer graphene nanoribbons",

abstract = "Using nonequilibrium molecular dynamics method (NEMD), we have found that the thermal conductivity of multilayer graphene nanoribbons monotonously decreases with the increase of the number of layers which can be attributed to the phonon resonance effect of out-of-plane phonon modes. The reduction of thermal conductivity is proportional to the layer size, which is caused by the increase of phonon resonance. The results clearly show the dimensional evolution of thermal conductivity from quasi-one dimension to higher dimensions in graphene nanoribbons.",

keywords = "Multilayer graphene nanoribbon, Nonequilibrium molecular dynamics, Phonon coupling, Size effect, Thermal conductivity",

author = "Cao, \{Hai Yuan\} and Guo, \{Zhi Xin\} and Hongjun Xiang and Gong, \{Xin Gao\}",

year = "2012",

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doi = "10.1016/j.physleta.2011.11.016",

language = "英语",

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pages = "525--528",

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TY - JOUR

T1 - Layer and size dependence of thermal conductivity in multilayer graphene nanoribbons

AU - Cao, Hai Yuan

AU - Guo, Zhi Xin

AU - Xiang, Hongjun

AU - Gong, Xin Gao

PY - 2012/1/9

Y1 - 2012/1/9

N2 - Using nonequilibrium molecular dynamics method (NEMD), we have found that the thermal conductivity of multilayer graphene nanoribbons monotonously decreases with the increase of the number of layers which can be attributed to the phonon resonance effect of out-of-plane phonon modes. The reduction of thermal conductivity is proportional to the layer size, which is caused by the increase of phonon resonance. The results clearly show the dimensional evolution of thermal conductivity from quasi-one dimension to higher dimensions in graphene nanoribbons.

AB - Using nonequilibrium molecular dynamics method (NEMD), we have found that the thermal conductivity of multilayer graphene nanoribbons monotonously decreases with the increase of the number of layers which can be attributed to the phonon resonance effect of out-of-plane phonon modes. The reduction of thermal conductivity is proportional to the layer size, which is caused by the increase of phonon resonance. The results clearly show the dimensional evolution of thermal conductivity from quasi-one dimension to higher dimensions in graphene nanoribbons.

KW - Multilayer graphene nanoribbon

KW - Nonequilibrium molecular dynamics

KW - Phonon coupling

KW - Size effect

KW - Thermal conductivity

UR - https://www.scopus.com/pages/publications/84855202282

U2 - 10.1016/j.physleta.2011.11.016

DO - 10.1016/j.physleta.2011.11.016

M3 - 文章

AN - SCOPUS:84855202282

SN - 0375-9601

VL - 376

SP - 525

EP - 528

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 4

ER -

Layer and size dependence of thermal conductivity in multilayer graphene nanoribbons

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Keywords

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