Photoelectric conversion property of covalent-attached multilayer self-assembled films fabricated from diazoresin and fullerol

A novel self-assembly multilayer film was fabricated from fullerenol (C-60( ONa)(n)) and diazoresin (DR)-a photosensitive polymer on indium-tin-oxide s ubstrate. The film shows good stability after UV irradiation and has photoe lectric conversion property, which can be measured in a conventional photoe lectrochemical cell. The cathodal photocurrent was measured to be about 800 nA/cm(2) for a nine-layer film at 100 mW/cm(2) white light. The photocurre nt spectroscopy responses coincide with the absorption spectrum of the self -assembly film, which means that the C-60(ONa)(n)/DR film is responsible fo r the photocurrent generation.