Mechanical and electrical properties of carbon nanotube ribbons

被引：36

作者：

Li, YH ^{[1
]}

Wei, JQ

Zhang, XF

Xu, CL

Wu, DH

Lu, L

Wei, BQ

机构：

[1] Tsing Hua Univ, Dept Mech Engn, Beijing 100084, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

[3] Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 365卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(02)01434-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have measured the Young's modulus of long aligned carbon nanotube ribbons using a special stress-strain puller designed for whisker-like materials. The Young's modulus of the graphitized carbon nanotube ribbons is about 60 GPa, which is 2.5 times higher than that of the as-grown ribbons. This suggests that the graphitization is an effective way to improve the mechanical properties of the ribbons. Most of the measured ribbons are semiconductor and their resistivities are in the range of 4.4-12.6 x 10(-4) Omega cm. An interesting phenomenon appeared in one ribbon is that the electrical property of the ribbon changes from metallic to non-metallic with decreasing the temperature. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：95 / 100

页数：6

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