Study by optical multichannel analysis, UV-vis-near-IR spectroscopy and Raman spectroscopy of the degradation mechanisms in a polyaniline/SnO2 electrochromic anode

Marie-Claude Bernard; Anne Hugot-Le Goff; Wen Zeng

doi:10.1117/12.219542

15 September 1995 Study by optical multichannel analysis, UV-vis-near-IR spectroscopy, and Raman spectroscopy of the degradation mechanisms in a polyaniline/SnO₂ electrochromic anode

Marie-Claude Bernard, Anne Hugot-Le Goff, Wen Zeng

Author Affiliations +

Proceedings Volume 2528, Optical and Photonic Applications of Electroactive and Conducting Polymers; (1995) https://doi.org/10.1117/12.219542
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The degradation mechanisms in polyaniline (PANI) thin films polymerized on SnO₂ after a large number of coloration/bleaching voltammetric cycles were investigated using optical and spectroscopic techniques, allowing us to follow the chemical changes related to the degradation. HCl solutions with different pH (0 and 3) were used and the role of the coloration potential was studied. The number and the nature of the polarons in the colored form play a leading part in the polymer stability, and they are modified by the cycling. This point was particularly emphasized here.

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Marie-Claude Bernard, Anne Hugot-Le Goff, and Wen Zeng "Study by optical multichannel analysis, UV-vis-near-IR spectroscopy, and Raman spectroscopy of the degradation mechanisms in a polyaniline/SnO₂ electrochromic anode", Proc. SPIE 2528, Optical and Photonic Applications of Electroactive and Conducting Polymers, (15 September 1995); https://doi.org/10.1117/12.219542

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