Study of the Effect of Absorber Layer Thickness on the Efficiency of a Perovskite Solar Cell (FTO/TiO₂/MAPbI₃/Spiro-OMeTAD) Using the SCAPS-1D Simulation Program. (2026). Journal of Pure and Applied Sciences (Science Forum), 26(4). https://doi.org/10.70882/hbxgfq86