Thermal conductivity of multiwalled carbon nanotubes

被引：373

作者：

Yang, DJ ^{[1
]}

Zhang, Q ^{[1
]}

Chen, G ^{[1
]}

Yoon, SF ^{[1
]}

Ahn, J ^{[1
]}

Wang, SG ^{[1
]}

Zhou, Q ^{[1
]}

Wang, Q ^{[1
]}

Li, JQ ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Ctr Microelect, Singapore 639798, Singapore

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.66.165440

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermal conductivity of multiwalled carbon nanotubes (CNT's) prepared using a microwave plasma chemical vapor deposition system is investigated using a pulsed photothermal reflectance technique. We find that the average thermal conductivity of carbon nanotube films, with the film thickness from 10 to 50 mum, is around 15 W/m K at room temperature and independent of the tube length. Taking a small volume filling fraction of CNT's into account, the effective nanotube thermal conductivity could be 2x10(2) W/m K, which is smaller than the thermal conductivity of diamond and in-plane graphite by a factor of 9 and 7.5, respectively.

引用

页码：1 / 6

页数：6

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