Mesoporous TiO2 aggregate photoanode with high specific surface area and strong light scattering for dye-sensitized solar cells

► The TiO2 aggregate photoanode provides a possible route for highly efficient DSCs. ► Photoanode with high dye loading and light scattering is successfully fabricated. ► TiO2 synthesized by a supercritical fluid process is first applied to DSCs. ► The synthesis method and high efficiency will push the commercialization of DSCs.