Abstract
An insulating, photoconductive polymer, poly[4-(N,N-diphenylamino)-phenylmethyl methacrylate] (PDAPM), has been transformed into a semiconductive polymer by electrochemical doping. The electrochemically-doped PDAPM is a partially oxidized cation radical salt with ClO 4 − as a dopant, and its structure is partially cross-linked at the paraposition of the phenyl group in the triphenylamine moiety owing to the coupling reaction of the cation radical. The electrochemically-doped PDAPM film sandwiched between aluminum and gold electrodes shows rectification and photovoltaic effects.
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