Molecular dynamics simulation on thermal conductivity of single-walled carbon nanotubes

Author

Kai Tang ; Fulong Zhu ; Youkai Chen ; Ying Li ; Hengyou Liao ; Sheng Liu

Author_Institution

State Key Lab. for Digital Manuf. Equip. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2013

fDate

11-14 Aug. 2013

Firstpage

583

Lastpage

586

Abstract

The thermal conductivity of finite-length singlewalled carbon nanotubes (SWCNTs) was investigated using non-equilibrium molecular dynamics (NEMD) simulations. The temperature and diameter dependence of thermal conductivity was studied in this paper. In this work, thermal conductivity of SWCNTs with the length of 24.5nm and different diameter - (6, 6), (7, 7), (8, 8), (10, 10), (15, 15) was studied at different temperature range from 200-700K. It was noted that thermal conductivity of SWCNTs decreased as temperature increasing at the temperature range of 200-700K, and the thermal conductivity reduced more smoothly. Different from the SWCNTs of small diameter, SWCNTs with the lager diameter had higher thermal conductivity.

Keywords

carbon nanotubes; molecular dynamics method; thermal conductivity; C; NEMD simulations; SWCNT; finite-length singlewalled carbon nanotubes; molecular dynamics simulation; nonequilibrium molecular dynamics; single-walled carbon nanotubes; size 24.5 nm; temperature 200 K to 700 K; thermal conductivity; Carbon nanotubes; Conductivity; Heating; Phonons; Temperature dependence; Temperature distribution; Thermal conductivity; Diameter dependence; NEMD; SWCNTs; Temperature dependence;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Packaging Technology (ICEPT), 2013 14th International Conference on

Conference_Location

Dalian

Type

conf

DOI

10.1109/ICEPT.2013.6756538

Filename

6756538