Effect of the solvent and the anion on the doping/dedoping behavior of poly(3,4-ethylenedioxythiophene) films studied with the electrochemical quartz microbalance

被引：56

作者：

Bund, A ^{[1
]}

Neudeck, S ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Phys Chem & Elektrochem, D-01062 Dresden, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 46期

关键词：

D O I：

10.1021/jp0469721

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 doping/dedoping behavior of poly(3,4-ethylenedioxythiophene) (PEDT) in acetontrile (lithium, sodium, and tetrabutyl perchlorate) and aqueous electrolytes (lithium and sodium perchlorate, sodium nitrate, sulfate, citrate, and toluenesulfonate) was investigated using the electrochemical quartz crystal microbalance (EQCM) technique. No significant cation exchange was observed. For the investigated anions (except sulfate), the calculated exchanged molar mass could be explained by the reversible replacement of solvent by anions during oxidation. The special behavior of sulfate that carries water into the film was explained by the high charge-to-volume ratio of this anion.

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页码：17845 / 17850

页数：6

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