The (P/Si)-TiO2 films for DSSCs application were synthesized by the sol-gel method and/or hydrothermal methods. Effects of calcination temperatures on phase contents, grain growth, film thickness, dye loading, surface morphology, visible light transmittance, electrochemical impedance and photoelectric conversion efficiency of the (P/Si)-TiO2 films were examined. Doping P and Si elements in the anatase-TiO2 can improve dye (N719) loading of the TiO2 particles. The photoelectric conversion of DSSCs using the (P/Si)-TiO2 film prepared by the sol-gel method gave better photoelectric conversion than that using a commercial TiO2, Degussa P25, film. By combining the sol-gel and hydrothermal methods, the obtained (P/Si)-TiO2 films absorbed more N719 than that prepared by solely the sol-gel method. The DSSCs using the (P/Si)-TiO2 film of 20-μm thickness prepared by the sol-gel and hydrothermal methods can give a photoelectric conversion of 6.12% with Voc = 0.68V, Jsc = 13.92 mA/cm2 and f.f.= 0.65.