Resistivity study of polyaniline doped with protonic acids

被引：79

作者：

Long, YZ

Chen, ZJ

Wang, NL

Zhang, ZM

Wan, MX

机构：

[1] Chinese Acad Sci, Inst Phys, Lab Extreme Condit Phys, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Organ Solid Lab, Beijing 100080, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 325卷 / 1-4期

关键词：

polyaniline; nanotubes; resistivity;

D O I：

10.1016/S0921-4526(02)01526-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Nanotubular polyaniline (PANI) doped with protonic acids have been synthesized by a "template-free" method. The temperature dependence of resistivity and the influences of doping concentration, dopant, morphology and crystallinity have been studied. A model has been proposed to explain the T-1/2 resistivity. Porous PANI-CSA (camphor sulfonic acid) and PANI-DBSA (dodecylbenzene sulfonic acid) composite films also have been investigated, we have suggested a new equation rho(T) = rho(1)exp(T-0/T)(1/4) + rho(2)(T/T-0)(2) to interpret the transition from negative temperature coefficient of resistivity (TCR) to positive TCR. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：208 / 213

页数：6