Electric conductivity changes of polypyrrole and polythiophene films with heat-treatment

被引：53

作者：

Ando, E ^{[1
]}

Onodera, S ^{[1
]}

Iino, M ^{[1
]}

Ito, O ^{[1
]}

机构：

[1] Tohoku Univ, Inst Chem React Sci, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

CARBON | 2001年 / 39卷 / 01期

关键词：

carbon films; pyrolysis; infrared spectroscopy; electron spin resonance; electrical properties;

D O I：

10.1016/S0008-6223(00)00098-1

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 electric conductivities of polypyrrole and polythiophene films have been measured as a function of heat-treatment temperature. From room temperature to 150 degreesC, the conductivity of polypyrrole film remained constant. From 150 to 300 degreesC, the conductivity dropped due to the decomposition of polypyrrole and the loss of dopant ion (ClO4-). Above 300 degreesC, the conductivity increased again. Above 750 degreesC, the conductivity was higher than that of the original film due to the formation of carbonaceous materials. The polythiophene film showed a similar tendency to the polypyrrole film. Chemical and spectroscopic methods such as elemental analysis, FT-IR and ESR were employed to determine the origin of the electric conductivity changes. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：101 / 108

页数：8

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