Anisotropic electrical conductivity of MWCNT/PAN nanofiber paper

被引：180

作者：

Ra, EJ ^{[1
]}

An, KH ^{[1
]}

Kim, KK ^{[1
]}

Jeong, SY ^{[1
]}

Lee, YH ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Phys, Ctr Nanotubes & Nanostruct Composites, Sungkyunkwan Adv Inst Nanotechnol, Suwon 440746, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 413卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2005.07.061

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：

The electrospinning process has been used successfully to fabricate the multiwalled carbon nanotubes (MWCNTs)-embedded polyacrylonitrile (PAN) nanofiber paper. The diameters of nanofibers decreased with increasing CNT concentration. We found large anisotropic electrical conductivity, i.e., the electrical conductivity of the carbonized nanofiber paper along the spinning direction was about three times larger than that normal to the spinning direction, in good contrast with observations that the carbonized PAN nanofiber paper without CNTs did not reveal anisotropy in electrical conductivity. This proves that CNTs in PAN nanofiber were preferentially aligned along the nanofiber axis, in excellent agreements with transmission electron microscopy observations. (c) 2005 Elsevier B.V. All rights reserved.

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页码：188 / 193

页数：6

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