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arXiv · 1111.5611

Chirality- and thickness-dependent thermal conductivity of few-layer graphene: a molecular dynamics study

Wei-Rong Zhong·Mao-Ping Zhang·Bao-Quan Ai·Dong-Qin Zheng
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Abstract

The thermal conductivity of graphene nanoribbons (layer from 1 to 8 atomic planes) is investigated by using the nonequilibrium molecular dynamics method. We present that the room-temperature thermal conductivity decays monotonically with the number of the layers in few-layer graphene. The superiority of zigzag graphene in thermal conductivity is only available in high temperature region and disappears in multi-layer case. It is explained that the phonon spectral shrink in high frequency induces the change of thermal conductivity. It is also reported that single-layer graphene has better ballistic transport property than the multi-layer graphene.

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Wei-Rong Zhong, Mao-Ping Zhang, Bao-Quan Ai, Dong-Qin Zheng. 2011-11-24. Chirality- and thickness-dependent thermal conductivity of few-layer graphene: a molecular dynamics study. https://doi.org/10.1063/1.3567415

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