Thermal conductivity of single-walled carbon nanotubes

被引：0

作者：

Hone, J. ^{[1
]}

Whitney, M. ^{[1
]}

Zettl, A. ^{[1
]}

机构：

[1] Department of Physics, Univ. of California at Berkeley, Materials Sciences Division, Berkeley, CA 94720, United States

来源：

Synthetic Metals | 1999年 / 103卷 / 1 -3 pt 3期

基金：

美国国家科学基金会;

关键词：

Derivatives - Fullerenes - Heat conduction - Phonons - Thermal conductivity - Thermal effects - Thermal variables measurement;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We have measured the thermal conductivity (κ) 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. κ(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 can 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

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