Bending Robustness of Thermal Conductance of Carbon Nanotubes: Nonequilibrium Molecular Dynamics Simulation
Bending Robustness of Thermal Conductance of Carbon Nanotubes: Nonequilibrium Molecular Dynamics Simulation
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DOI：
10.1143/apex.2.035003
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发表时间：
2009-02
影响因子：
2.3
通讯作者：
F. Nishimura;Toru Takahashi;Kazuyuki Watanabe;Takahiro Yamamoto
中科院分区：
文献类型：
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作者：
F. Nishimura;Toru Takahashi;Kazuyuki Watanabe;Takahiro Yamamoto
通过进行非平衡分子动力学模拟，我们发现碳纳米管起到了声子波导的作用，即使在严重弯曲的情况下也保持了良好的导热性能。我们还表明，当多壁纳米管的外壳部分破裂时，即使内壳保持其管结构，导热系数也会显著降低。这些结果有力地支持了最近的实验结果。
By performing nonequilibrium molecular-dynamics simulations, we found that carbon nanotubes act as phonon waveguides, retaining their excellent thermal conductance even when they are severely bent. We also show that thermal conductance is reduced dramatically when the outer shells of a multi-walled nanotube are partially broken, even if the inner shells maintain their tube structure. These results strongly support recent experimental results.