Influence of the Porosity of the TiO₂ Film on the Performance of the Perovskite Solar Cell

Figure 4

SEM-EDX mapping along the mp-TiO₂ film thickness to show the change in the distribution of Ti and Pb in CH₃NH₃PbI₃ loaded on (a) PS-0 and (b) PS-1.0.

(a)

(b)