Length Dependence of Thermal Conductivity of Single-Walled Carbon Nanotubes  

作　　者：潘瑞芹 许子健 朱志远 

机构地区：[1]Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 [2]Graduate School of the Chinese Academy of Sciences, Beijing 100049

出　　处：《Chinese Physics Letters》2007年第5期1321-1323,共3页中国物理快报（英文版）

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.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.

关 键 词：MOLECULAR-DYNAMICS SIMULATION HEAT-CONDUCTION TRANSPORT 

分 类 号：TB383[一般工业技术—材料科学与工程]