THE ASYMMETRY BETWEEN THE MECHANISM OF OXIDATION AND REDUCTION OF POLY(3-METHYLTHIOPHENE) STUDIED BY ELLIPSOMETRY

被引：14

作者：

CHAO, F

COSTA, M

机构：

[1] LEI, CNRS, F-92195 Meudon Cédex

来源：

SYNTHETIC METALS | 1990年 / 39卷 / 01期

关键词：

D O I：

10.1016/0379-6779(90)90202-V

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ellipsometry measurements performed during the electrochemical oxidation and reduction of poly(3-methylthiophene) (dynamic or static experiments) are compared with suitable models. It is shown that oxidation is a homogeneous reaction whereas reduction starts from the polymer-solution interface and then a reaction front propagates through the layer. When the light energy is smaller than the gap energy, the concentration of polarons involved in the oxidation process can be deduced.

引用

页码：97 / 102

页数：6

共 7 条

[1]

AZZAM RMA, 1977, ELLIPSOMETRY POLARIZ, P332

[2] HIGHLY CONDUCTING POLYPARAPHENYLENE, POLYPYRROLE, AND POLYTHIOPHENE CHAINS - AN ABINITIO STUDY OF THE GEOMETRY AND ELECTRONIC-STRUCTURE MODIFICATIONS UPON DOPING [J].