Optimizing PV Parameters in CH3NH3PbI3 Based Cell Through Device Modeling
Aniket Verma, Nikhil Shrivastav, Jaya Madan
Abstract
Perovskite materials have developed a lot of attention in the photovoltaic (PV) industry owing to its exceptional properties like high power conversion efficiency (PCE), tunable bandgaps, and low cost. Electron transport layers (ETL) and hole transport layers (HTL) are used to improve charge carrier mobility in perovskite solar cells. Choosing the best ETL and HTL is of the utmost importance for optimal perovskite-based solar cell design. Choosing the best ETL and HTL is critical for optimal perovskite-based solar cell design. We used silver thiocyanate (AgSCN) as the HTL in the PCBM/CH3NH3PbI3/AgSCN solar cell in this investigation. We examined the cumulative impact of thickness and bulk defect density (BDD) on several PV parameters of the cell to optimize its performance. The results demonstrated the following PV parameters: open circuit voltage (Voc) of 0.962 V, short-circuit current (Jsc) of 19.743 mA/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , fill factor (FF) of 86.68%, and power conversion efficiency (PCE) of 16.47%. The research shows that having a thicker layer for improved photon absorption is helpful for improved cell PV performance. It is also critical to keep the defect density low in order to minimize charge carrier recombination.