Design and numerical simulation of highly efficient mixed‐organic cation mixed‐metal cation perovskite solar cells

Abstract

Summary Mixed cation perovskite type materials have recently shown considerable potential in high‐efficiency single‐ and multi‐junction solar cell devices. However, the operating principles of multiple cation‐based perovskite solar cells are currently poorly understood. Furthermore, the photovoltaic performances of mixed cations‐based perovskites solar cells are investigated using device simulator program. Inorganic TiO2 and Cu2O were used as electron transport layer and hole transport layer, respectively, because of their better performance. The impact of thickness, doping concentration and density of defect is examined using on the device performance. In addition, the effect of band offsets on performance was also investigated through altering the electron affinity of interface layers. Our calculated results reveal that a 700 nm absorber thickness is appropriate for a good solar cell device. Furthermore, impressive cell efficiency findings were obtained by adjusting defect density (1015‐1016 cm−3) of the mixed perovskite active layer. The optimum conduction and valence band offsets, respectively, were determined to be 0.1 to 0.4 eV and 0.1 to 0.1 eV, allowing for a good performance of mixed perovskite devices. As an alternative to typical halide perovskite solar cells, our findings can be utilized to design and construct efficient mixed cations perovskite solar cell devices.

Machine Learning for Halide Perovskite Materials ABX3 (B = Pb, X = I, Br, Cl) Assessment of Structural Properties and Band Gap Engineering for Solar Energy

“…We conclude that the relationship between the band gap and dielectric constant is an inverse relationship. The increase in the value of the dielectric constant corresponds to the decrease in the value of the band gap [ 21 , 22 , 23 , 24 , 25 ]. In fact, in a high-symmetry structure such as cubic, the electronic charge distribution is very uniform, leading to weak polarization effects and a low dielectric constant.…”

Comprehensive analysis of heterojunction compatibility of various perovskite solar cells with promising charge transport materials

“…However, theoretical studies have shown that if the stability issues are overcome, the Ge-PSC can achieve PCE beyond 20%. Kanoun et al 32 explored MAGeI 3 through numerical modeling and attained the PCE of 21.6%. In another study, Singh et al 33 also focused on Ge based cells modelling, achieving an outstanding PCE of 26.3%.…”