Fabrication of TiO2 nanotube-nanocube array composite electrode for dye-sensitized solar cells

► Fabrication of TiO2 nanotube arrays on Ti foils was performed using anodization process. ► Nitrogen blow influences the growth of TiO2 nanocube particles on the TiO2 nanotube arrays. ► Mixed morphological nanotube-nanocube TiO2 photoanode in dye-sensitized solar cell achieved improved efficiency of 1.98%.