Thermal conductivity of single-walled carbon nanotubes

被引：186

作者：

Hone, J ^{[1
]}

Whitney, M

Zettl, A

机构：

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

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

来源：

SYNTHETIC METALS | 1999年 / 103卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

heat conduction; fullerenes and derivatives;

D O I：

10.1016/S0379-6779(98)01070-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured the thermal conductivity (kappa) of bulk samples of single-walled nanotube (SWNT) bundles. The thermal conductivity of SWNT's is found to be large, and dominated by phonons at all temperatures. kappa(T) Of SWNT's is linear in temperature from 7 K to 25 K, increases slope between 25 K and 40 K, and rises monotonically with temperature to above room temperature. The data call be fit by a single-scattering-time model; the model confirms that the low-temperature linear behavior is due to the thermal conductivity of a single one-dimensional phonon subband, and that the phonon mean free path is of order 100 nm.

引用

页码：2498 / 2499

页数：2