A SCAPS Simulation Study to Optimize Formamidinium Lead Iodide Solar Cells for Sustainable Energy Generation

In this research article discusses the require for sustainable and renewable source, and the potential of perovskite solar cell, specifically Formamidinium Lead Iodide (FASnI3), in meeting this demand. Although FASnI3 has shown high photovoltaic performance (PV), low cost of production, and tunable optoelectronic properties, optimizing its efficiency, stability, and long-term performance remains a challenge. The study presents a simulation using the SCAPS simulator to optimize the thickness of FASnI3 solar cells and analyze the impact of bulk defect density (Nt) on their performance. The simulation results demonstrated potential methods for increasing the efficiency of FASnI3 solar cells and offer insightful information about the variables that have an impact on their performance. The design of the simulated perovskite cell and its operation, which includes various layers such as Cu/PEDOT: PSS + WO
3
/FASnI
3
(active layer)/PC61BM/FTO are also discussed. In order to evaluate the efficiency of the device, the effect of thickness change and Nt of F ASnI
3
- based PSC has been addressed. In the proposed study, the FASnI3 absorber layers Nt varied from 10
¹²
– 10
¹⁶
cm
⁻³
, as well as their thickness modified from 50 – 500 nm. After the disparity, the cell performs best on low defect density and higher thickness, which offered better PV characteristics i.e., -J
SC
: 27.6 mA/cm
²
, Voc: 1.31 V, FF: 88%, and the PCE: 30.3%.