Conducting polymers at electrode surfaces as studied by in situ ESR/UV-Vis-NIR spectroscopy

被引：7

作者：

Rapta, P ^{[1
]}

Petr, A ^{[1
]}

Dunsch, L ^{[1
]}

机构：

[1] Abt Elektrochem & Leitfahige, Inst Festkorper & Werkstofforsch, D-01171 Dresden, Germany

来源：

SYNTHETIC METALS | 2001年 / 119卷 / 1-3期

关键词：

conducting polymers; oligomers; thianthrene; ion radical dimers; in situ ESR/UV-Vis-NIR voltammetry;

D O I：

10.1016/S0379-6779(00)01164-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conducting polymers can form both polarons and bipolarons in redox reactions at electrodes surfaces. Both of these species can be studied by UV-Vis-NIR spectroscopy. To follow the polaron by the in situ ESR spectroscopic technique and the bipolaron formation by the UV-Vis-NIR spectroscopy in electrochemical studies a special equipment is required. For this purpose an optical ESR cavity is applied to do transmission spectroscopy at optically transparent electrodes in an ESR spectrometer. The advantages of the in situ ESR/UV-Vis-NIR spectroelectrochemical measurements is presented in the study of different polymeric structures like polypyrrole, polythiophene, polyaniline and oligothiophenes.

引用

页码：409 / 410

页数：2

共 8 条

[1]

Hubler P, 1998, BER BUNSEN PHYS CHEM, V102, P1506

[2]

Merz A, 1999, ANGEW CHEM INT EDIT, V38, P1442, DOI 10.1002/(SICI)1521-3773(19990517)38:10<1442::AID-ANIE1442>3.0.CO

[3]

2-R

[4] The redox mechanism of polyaniline studied by simultaneous ESR-UV-vis spectroelectrochemistry [J].

Neudeck, A ;

Petr, A ;

Dunsch, L .

SYNTHETIC METALS, 1999, 107 (03) :143-158

[5] Separation of the ultraviolet-visible spectra of the redox states of conducting polymers by simultaneous use of electron-spin resonance and ultraviolet-visible spectroscopy [J].

Neudeck, A ;

Petr, A ;

Dunsch, L .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (06) :912-919

[6] In situ UV-vis ESR spectroelectrochemistry [J].

Petr, A ;

Dunsch, L ;

Neudeck, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1996, 412 (1-2) :153-158

[7] In situ EPR/UV-VIS spectroelectrochemistry of polypyrrole redox cycling [J].

Rapta, P ;

Neudeck, A ;

Petr, A ;

Dunsch, L .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1998, 94 (24) :3625-3630

[8] pi-Dimers of pyrrole-thiophene oligomer cation radicals [J].

vanHaare, JAEH ;

Groenendaal, L ;

Havinga, EE ;

Meijer, EW ;

Janssen, RAJ .

SYNTHETIC METALS, 1997, 85 (1-3) :1091-1092

← 1 →