the active layer of SC-C was also tested under the same test conditions and its performance of SC-C device is presented in Table 1. The η of SC-C with 5.60% approaches to the efficiency of SC-B employing P-18 as active layer. Considering the strong scattering of dice-like TiO2 (Fig. 4(c)), more scattering/reflectance light lost at the surface of dice-like TiO2 due to the improved back-scattering light. Therefore, as active layer, the dice-like TiO2 might achieve to higher photoelectric conversion efficiency than P-18 for absorbed light. Furthermore, we deduce that the multilayer adsorption of N719 dye is suppressed in nano-cavity based on the geometric configuration of N719 and pore properties of dice-like TiO2 (Fig. 4 (e)). The facet-to-facet joints lead to a higher efficient electron transfer by reducing electron recombination, which contributes to