Thermal conductivity of single-walled carbon nanotubes

被引：977

作者：

Hone, J ^{[1
]}

Whitney, M

Piskoti, C

Zettl, A

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.59.R2514

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured the temperature-dependent thermal conductivity kappa(T) of crystalline ropes of single-walled carbon nanotubes from 350 K to 8 K. kappa(T) decreases smoothly with decreasing temperature, and displays linear temperature dependence below 30 K. Comparison with electrical conductivity experiments indicates that the room-temperature thermal conductivity of a single nanotube may be comparable to that of diamond or in-plane graphite, while the ratio of thermal to electrical conductance for a given sample indicates that the thermal conductivity is dominated by phonons at all temperatures. Below 30 K, the linear temperature dependence and estimated magnitude of kappa(T) imply an energy-independent phonon mean free path of similar to 0.5-1.5 mu m. [S0163-1829(99)50404-9].

引用

页码：R2514 / R2516

页数：3

共 14 条

[1] Heat capacity of carbon nanotubes [J].