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In-plane lattice thermal conductivities of multilayer graphene films

โœ Scribed by Zhiyong Wei; Zhonghua Ni; Kedong Bi; Minhua Chen; Yunfei Chen

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
529 KB
Volume
49
Category
Article
ISSN
0008-6223

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โœฆ Synopsis

The in-plane lattice thermal conductivities of a single layer and multilayer graphene films are investigated using nonequilibrium molecular dynamics simulations. It is found the thermal conductivity of a single layer graphene is higher than that of multilayer graphene.

Increasing the bonding strength between neighboring layers will reduce the in-plane thermal conductivity for multilayer graphene films. The constraints from the neighboring layer play the role of impeding phonon transport along the in-plane direction in multilayer graphene films. This observation implies the thermal conductivity of a single layer graphene will be reduced in practical applications once it is bonded on a substrate.

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