Mesoporous (N, S)-codoped TiO2 nanoparticles as effective photoanode for dye-sensitized solar cells

► Mesoporous (N, S)-TiO2 nanoparticles are synthesized by a solvothermal method. ► (N, S)-codoped TiO2 can improve Voc and Jsc of DSSC. ► DSSC with hierarchical photoanode shows a high conversion efficiency of 8%.