Thermal boundary resistance between the end of an individual carbon nanotube and a Au surface
Thermal boundary resistance between the end of an individual carbon nanotube and a Au surface
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DOI：
10.1088/0957-4484/22/31/315702
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发表时间：
2011-08
期刊：
影响因子：
3.5
通讯作者：
J. Hirotani;T. Ikuta;T. Nishiyama;Koji Takahashi
中科院分区：
文献类型：
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作者：
J. Hirotani;T. Ikuta;T. Nishiyama;Koji Takahashi
使用微型热膜传感器测量单个碳纳米管和金表面之间的热边界电阻。我们使用封闭式和开放式多壁碳纳米管，获得的热边界电阻值分别为0.947-1.22×107KW-1和1.43-1.76×107KW-1。考虑到包括接触面积在内的所有不确定性，c轴方向的单位面积热边界导热系数计算为8.6 × 107–2.2 × 108 W m − 2 K − 1，a轴方向的单位面积热边界导热系数为4.2 × 108–1.2 × 109 W m − 2 K − 1。这些值的趋势与预测的电导对各向异性碳基材料界面取向的依赖性一致。然而，发现测量的热边界电导比报告的结果大得多。
The thermal boundary resistance between an individual carbon nanotube and a Au surface was measured using a microfabricated hot-film sensor. We used both closed and open-ended multi-walled carbon nanotubes and obtained thermal boundary resistance values of 0.947–1.22 × 107 K W − 1 and 1.43–1.76 × 107 K W − 1, respectively. Considering all uncertainties, including the contact area, the thermal boundary conductances per unit area were calculated to be 8.6 × 107–2.2 × 108 W m − 2 K − 1 for c-axis orientation and 4.2 × 108–1.2 × 109 W m − 2 K − 1 for the a-axis. The trend in these values agrees with the predicted conductance dependence on the interface orientation of anisotropic carbon-based materials. However, the measured thermal boundary conductances are found to be much larger than the reported results.