^aDepartment of Electrical and Electronic Engineering, East Delta University,

Abdullah Al Noman Road, Noman Society, East Nasirabad, Khulshi, Chattogram 4209, Bangladesh

^bDepartment of Electrical and Electronic Engineering, International Islamic

University Chittagong, Kumira, Chittagong, Bangladesh

Future solar cells are perovskite solar cells (PSC). Silicon based solar cells offer an unlimited source of clean energy. Even if perovskite PCE is currently not at its optimum, it has shown great potential for improvement. Numerical analysis of PSC is now more convenient using different simulation software which is a great way to experiment on PSC.

In this study, a unique structure of PSC has been proposed, its key parameters like acceptor density, perovskite defect density, interface defect density, and thickness has been investigated to find out their impact on device performance. After optimization a high power conversion efficiency (PCE) 30.57%, open circuit voltage of 1.02 V, short circuit current of 34.68 (mA/Cm2) and fill factor 86.21% respectively was obtained.