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Spatially resolved electrochemical reversibility of a conducting polymer thin film imaged by oblique-incidence
Changyin Zhong1, Ling Li, Nan Chen
1Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China. whhu@swu.edu.cn.
Abstract:
The spatially resolved electrochemical reversibility of a polyaniline (PANI) thin film is successfully imaged by an oblique-incidence reflectivity difference (OIRD) technique. The electrochemical conversion of the PANI thin film from its completely reduced state to partially oxidized state gives rise to a considerable OIRD signal while upon the deterioration of the electrochemical reversibility, this OIRD signal decreases.
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