Combining surface plasmon resonance and quartz crystal microbalance for the in situ investigation of the electropolymerization and doping/dedoping of poly(pyrrole)

被引：39

作者：

Bund, A

Baba, A

Berg, S

Johannsmann, D

Lübben, J

Wang, Z

Knoll, W

机构：

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

[2] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[3] Inst Chem Phys, D-38678 Clausthal Zellerfeld, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 28期

关键词：

D O I：

10.1021/jp034043o

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：

An in situ combination of surface plasmon resonance (SPR) spectroscopy and quartz crystal microbalance (QCM) is used to study the electropolymerization and the doping/dedoping behavior of thin poly(pyrrole) (ppy) films in aqueous solutions. A mixed anion and cation exchange behavior is observed. The mass as determined with the QCM continuously increases during redox cycling. The combined QCM/SPR data reveal that this is caused by a relatively slow process occurring when ppy is in the oxidized (polaronic) state. This behavior is interpreted as an accumulation of neutral salt and solvent in the film.

引用

页码：6743 / 6747

页数：5

共 28 条

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