Ultrathin films of poly(thiophene-3-acetic acid) (PTAA)/TiO2 nanocomposite were fabricated layer by layer at various solid surfaces by consecutively adsorbing PTAA and TiCl4 (in toluene–ethanol). The fabrication process was carried out by performing the controlled hydrolysis and condensation processes in separate steps. The build-up of such multilayer films was monitored by UV–VIS spectroscopy and quartz crystal microbalance measurements. The ordered multilayers were subsequently characterized by IR spectroscopy, atomic force microscopy, electrochemical, photo-electrochemical and electrical conductivity measurements. The potential application of such nanocomposite films in photovoltaic applications is discussed.
