One-step synthesis of a Si/CNT–polypyrrole composite film by electrochemical deposition

A Si/CNT-polypyrrole thin film was prepared by electrochemical deposition from an aqueous solution containing Si/CNT composite colloids. The proposed co-deposition mechanism involves the rapid electropolymerization of polypyrrole nanowires and the electrophoretic deposition of Si/CNT particles. The CNT coating on the Si particles enables electrophoresis of the Si particles and promotes the incorporation of the particles into the polypyrrole film.