Ouserigha, C. E., and A. K. Benjamin. “First-Principles Investigation of the Electronic and Optical Properties of Cs-Doped FAPbI3 Halide Perovskite Solar Cell”. Journal of Innovative Research, vol. 3, no. 2, May 2025, pp. 55-63, doi:10.54536/jir.v3i2.4468.