Two Kinds of PolaronsObservedin Polyanilinein Aqueous H_2SO_4

Authors

Qin ZHOU, College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China;
Lin ZHUANG, College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China;
Jun-tao LU, College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China;

Corresponding Author

Lin ZHUANG(lzhuang@whu.edu.cn)

Abstract

Simultaneous electrochemistry electron spin resonance (ESR) conductance measurements were carried out on electropolymerized polyaniline and ESR spectra were obtained with high signal/noise ratio. Spectral simulation revealed that in the early stage of polymerization, there were two kinds of polarons. According to the potential dependence of the ESR line width and the corresponding conductivitychange of the polymer, the two polarons are thought to be in ordered and disordered domains, respectively. With increasing doping level, the two polarons underwent similar transfer from Curie spin to Pauli spin and both polarons were charge carriers in the conducting polymer. This deduction was further supported by ESR saturation measurement.

Keywords

Electron spin resonance, Polaron, Spin mobility, Polyaniline

DOI Link

https://doi.org/10.61558/2993-074X.1555

Publication Date

2004-05-28

Online Available Date

2004-05-28

Revised Date

2004-05-28

Received Date

2004-05-28

Recommended Citation

Qin ZHOU, Lin ZHUANG, Jun-tao LU. Two Kinds of PolaronsObservedin Polyanilinein Aqueous H_2SO_4[J]. Journal of Electrochemistry, 2004 , 10(2): 121-126.
DOI: 10.61558/2993-074X.1555
Available at: https://jelectrochem.xmu.edu.cn/journal/vol10/iss2/1

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