Peculiarities of photoconversion efficiency modeling in perovskite solar cells

A theoretical approach to photoconversion efficiency modeling in perovskite $p$–$i$–$n$ structures is developed. The results of the theoretical modeling are compared with the experiment. Analysis of the experimental data indicated that the surfaces of the perovskite solar cells (SCs) are spontaneously textured, which leads to more effective light absorption and increased photoconversion efficiency. It is established that photoconversion efficiency as a function of $i$-layer thickness has a maximum in the region 0.3–0.9 $\mu$m.