An analysis of the capability of porous tungsten trioxide films as a material for photocurrent generation was performed. The photogeneration properties of single-component WO3 and TiO2 films and bicomponent WO3/TiO2 films were compared. The morphology, structure, fundamental absorption edge, flatband potential, vibration spectra, and photocurrent response of the amorphous WO3 films and nanocrystalline TiO2 films were measured. We: found that in bicomponent WO3/TiO2 films, the porous films of the tungsten trioxide with a high open surface area can serve as substrates for nanocrystalline TiO2 films to increase the efficiency of photocurrent generation at bandgap excitation.