Suppression of thermal conductivity in graphene nanoribbons with rough edges
Suppression of thermal conductivity in graphene nanoribbons with rough edges
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DOI：
10.1103/physrevb.82.195422
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发表时间：
2010-11-10
影响因子：
3.7
通讯作者：
Hu, Bambi
中科院分区：
文献类型：
--
作者：
Savin, Alexander V.;Kivshar, Yuri S.;Hu, Bambi
我们数值分析了石墨烯纳米带的热导率与完美和粗糙的边缘。我们证明，边缘粗糙度可以抑制两个数量级的热导率。这种效应与边缘诱导的能量局域化和声子输运的抑制有关，并且对于较长的纳米带和较低的温度变得更加明显。
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.