Effect of Codoping Cl Anion and 5-AVA Cation on Performance of Large-Area Perovskite Solar Cells with Double-Mesoporous Layers

Figure 5

Perovskite film and device performance. (a) The UV-vis spectra of FTO glass/cp-TiO₂/mp-TiO₂ films filling with MAPbI₃ (black square) and (olive triangle). (b) The IPCE curves and corresponding integrated photocurrent curves of the devices with/without doping Cl⁻.

(a)

(b)