Kavitha, M. and Sudheer, S. 2026. A Numerical Simulation Study Investigating the Functionality of a Perovskite Solar Cell Based on FASnI3 in Both Conventional and Inverted Configurations Using Compatible Zn(O0.3S0.7) as the Electron Transport Layer. East European Journal of Physics. 2 (Jun. 2026), 292-301. DOI:https://doi.org/10.26565/2312-4334-2026-2-31.