Electrochemical bandgaps of substituted polythiophenes

被引：293
作者：
Johansson, T [1 ]
Mammo, W
Svensson, M
Andersson, MR
Inganäs, O
机构：
[1] Linkoping Univ, IFM, S-58183 Linkoping, Sweden
[2] Chalmers Univ Technol, Dept Organ Chem, S-41283 Gothenburg, Sweden
[3] Chalmers Univ Technol, Dept Polymer Technol, S-41283 Gothenburg, Sweden
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2003年 / 13卷 / 06期
关键词：
D O I：
10.1039/b301403g
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 electrochemical bandgaps for different soluble substituted polythiophenes have been measured by cyclic voltammetry. The effect of substituents on the oxidation/reduction potentials is discussed. Bandgaps obtained by cyclic voltammetry have been found to be in general higher than optical bandgaps. Among regioregular polymers substituted with a phenyl group at position 3 of the thiophene ring, examples are found that give very symmetric voltammograms. Rationalization for this behaviour is discussed from a conformational point of view.
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页码：1316 / 1323
页数：8
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