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Electrochemical formation of conducting polymer coating on porous p‐ and n‐silicon substrates
Author(s) -
Abalyaeva Valentina V.,
Efimov Oleg N.
Publication year - 2000
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(200002)11:2<69::aid-pat938>3.0.co;2-v
Subject(s) - electrosynthesis , polyaniline , materials science , aniline , cyclic voltammetry , inorganic chemistry , porous silicon , conductive polymer , electrochemistry , aqueous solution , electrolyte , polymer , chemical engineering , silicon , electrode , polymerization , chemistry , organic chemistry , composite material , metallurgy , engineering
Electrochemical synthesis of polyaniline was carried out in aqueous sulfuric acid solutions of aniline on porous p‐ and n‐silicon under galvanostatic, potentiostatic and potential pulse regimes. It is shown that the introduction of catalytic quantities of oxidants, potassium hexachloroiridate, potassium dichromate, potassium permanganate and chloranilic acid, in electrolytes accelerates the formation of polymer films and lowers the overvoltage of electrosynthesis. The resulting polymer coatings are characterized by cyclic voltammetry and IR spectroscopy. It is shown that polyaniline coatings on porous p‐ and n‐silicon electrodes are electroactive and conducting in anodic and cathodic ranges. Copyright © 2000 John Wiley & Sons, Ltd.