Adebayo, S., Adetunji, B. I., Olusola, A., Awodele, M. K., & Awodugba, A. O. (2026). Density Functional Theory Assessment of the Structural, Electronic and Optical Properties of Lead-Free KSnI₃ Perovskite. Nigerian Journal of Applied Physics, 2(3), 130-139. https://doi.org/10.62292/njap-v2i3-2026-113