Exploring Optoelectronic‐Thermal Coupling in Perovskite Solar Cells Utilizing Varied Hole Transport Layers

Abstract

AbstractPerovskite solar cells (PSCs) have become a research hotspot both domestically and internationally due to their superior optoelectronic performance as a new type of thin‐film solar cell. One of the methods to enhance the performance of PSCs is the optimization of the hole transport layer(HTL). In this study, COMSOL Multiphysics simulation software is employed to model and simulate PSCs, and perform coupled simulations of the optical, electrical, and thermal properties of PSCs with different HTL. The simulations analyze the carrier concentration, Shockley–Read–Hall (SRH) recombination, electric field profile, and temperature distribution in the devices. The simulation results demonstrate that among the different HTL (CuO, Spiro‐OMeTAD, and NiO), NiO exhibited more favorable characteristics as a HTL for improving the photovoltaic conversion efficiency of PSCs. The photovoltaic conversion efficiency reached 17.14% with NiO as the hole transport layer, and the SRH recombination rate in PSCs based on NiO HTL of PSCs is lower than CuO and Spiro‐OMeTAD, facilitating efficient charge transport. Furthermore, the temperature distribution of PSCs is analyzed based on different HTL, and the results indicate that PSCs with NiO as the hole transport layer exhibited higher thermal stability.