Abstract
Ultrathin polymer films incorporating a ruthenium trisbipyridine (Ru) complex as an electron donor, and viologen as an electron acceptor, or a related redox pair, and their self-assembled monolayers were fabricated. Photochemical and/or photoelectric conversion using these film assemblies were carried out. The Ru complex incorporated in the polymer film showed a photocatalytic activity. Interfacial electron-transfer and electron accumulation were verified in the dye-polymer composite films.
Self-assembled monolayers of the Ru complex-viologen pair were fabricated on electrodes. The photocurrent efficiency profoundly depended on the donor-acceptor and acceptor-electrode distances as well as the donor : acceptor ratio. Multistructure assemblies using gold nanoparticles and supramolecular assemblies using surface sol-gel process were also proposed as photoelectric conversion devices.
