Thermal conductivity of B-C-N and BN nanotubes

被引：43

作者：

Chang, CW ^{[1
]}

Han, WQ

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

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2005年 / 23卷 / 05期

关键词：

D O I：

10.1116/1.2008266

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have measured the temperature-dependent thermal conductivity kappa(T) of boron-carbon-nitride (B-C-N) and boron nitride (BN) nanotube mats. The thermal conductivity of B-C-N nanotubes is phonon dominated and reflects dimensional effect below 70 K. We employ a new analysis method to estimate the intrinsic kappa(T) of BN nanotubes converted from B-C-N nanotubes, and find that at room temperature kappa(T) of a multiwalled BN nanotube is within 0.04-0.32 times that of a multiwalled carbon nanotube. The lower kappa(T) of BN nanotubes than that of carbon nanotubes may be due to the enhanced isotope disorder effect in one dimension. (c) 2005 American Vacuum Society.

引用

页码：1883 / 1886

页数：4

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