SLOW RELAXATION IN CONDUCTING POLYMERS

被引：99

作者：

ODIN, C

NECHTSCHEIN, M

机构：

[1] Laboratoire de Physique des Métaux Synthétiques, Centre D Etudes Nucléaires de Grenoble, Département de Recherche Fondamentale, F-38041 Grenoble Cedex

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.67.1114

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The potential at which conducting polymers can be electrochemically doped to the conducting state shifts slowly when the material is maintained in the insulating state. A logarithmic law for the shift as a function of the wait time in the insulating state has been observed over the range 10(-4)-10(5) s. The influence of temperature, pressure, and nature of the electrolyte has been studied. A logarithmic shift is also observed as a function of the scan rate, which indicates that the relaxation process concerns kinetic parameters of the reaction rather than the thermodynamical redox potential. The kinetics of the doping process is shown to obey a universal law, which resembles the aging process of glassy materials.

引用

页码：1114 / 1117

页数：4

共 17 条

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