Electrophoretic deposition of TiO2 nanoparticles using organic dyes

► TiO2 films were obtained by electrophoretic deposition. ► Organic dyes provided charging and dispersion of TiO2 nanoparticles. ► Alizarin red, alizarin yellow, pyrocatechol violet and aurintricarboxylic acid dyes were used. ► The adsorption of dyes, deposition mechanism and deposition yield were studied. ► Dye-sensitized TiO2 films can be used for photovoltaic devices.