Investigation of photocurrent efficiency of Cs2TiBr6 double perovskite solar cell

Perovskite photovoltaics are becoming a more popular alternative to traditional solar cells. Perovskites made of lead have the highest power conversion efficiency, but they are harmful to the environment. Various lead-free perovskite structures have recently been suggested. Although the tin-based lead-free perovskite (CH3NH3SnI3) garners the most interest due to its broad absorption, it suffers from temperature instability. Due to their interesting characteristics and potential uses, double perovskite compounds have recently drawn a growing amount of attention as a potential replacement for tin-based perovskite photovoltaic cells. However, there are limited studies dedicated to the characterization of these materials as an absorbent layers. In this research, the SCAPS modeling software was used to investigate the lead-free double perovskite perovskites halides (Cs2TiBr6) as an absorbent material in this work. This research models several ETLs and HTLs to attain high power conversion efficiency (PCE). Parameters of absorber layer such as thickness and defect density are varied to test the influence of absorber's characteristics on device performance. Following the rigorous simulation, we discovered that. Cs2TiBr6 6 is a promising material for lead-free perovskite solar cells. (c) 2022 Elsevier Ltd. All rights reserved.