| Length Dependence of Thermal Conductivity of Single-Walled Carbon Nanotubes |
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| 作者姓名： | 潘瑞芹 许子健 朱志远 |
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| 作者单位： | [1]Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 [2]Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| 基金项目： | Supported by the Key Project of Knowledge Innovation Program of Chinese Academy of Sciences （KJCX3-SYW-N10）. |
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| 摘 要： | Dependence of the thermal conductivity on the length of two armchair single-walled carbon nanotubes （SWNTs） is studied by the nonequilibrium molecular dynamics （MD） method with Brenner Ⅱ potential. The thermal conductivities are calculated for （5, 5） and （7, 7） SWNTs with lengths ranging from 22 to 155nm. The results show that the thermal conductivity of SWNTs is sensitive to the length and it does not converge to a finite value when the tube length increases up to 155nm, however it obeys a power law relation.
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| 关 键 词： | 碳纳米管 热传导 长度 不平衡分子动力学 |
| 收稿时间： | 2006-12-29 |
| 修稿时间： | 2006-12-29 |
Length Dependence of Thermal Conductivity of Single-Walled Carbon Nanotubes |
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| PAN Rui-Qin,XU Zi-Jian,ZHU Zhi-Yuan.Length Dependence of Thermal Conductivity of Single-Walled Carbon Nanotubes[J].Chinese Physics Letters,2007,24(5):1321-1323. |
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| Authors: | PAN Rui-Qin XU Zi-Jian ZHU Zhi-Yuan |
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| Institution: | 1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 ; 2 Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | Dependence of the thermal conductivity on the length of two armchair single-walled carbon nanotubes (SWNTs) is studied by the nonequilibrium molecular dynamics (MD) method with Brenner II potential. The thermal conductivities are calculated for (5, 5) and (7, 7) SWNTs with lengths ranging from 22 to 155nm. The results show that the thermal conductivity of SWNTs is sensitive to the length and it does not converge to a finite value when the tube length increases up to 155nm, however it obeys a power law relation. |
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| Keywords: | 61 46 -w 61 48 +c 63 22 +m |
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