First-Principles Investigation of Semiconducting Cu2ZnSnX4 (X = S, Se) Eco-Friendly Materials for the Next Generation of Photovoltaic Applications. East Eur. J. Phys. [Internet]. 2025 Sep. 8 [cited 2026 Oct. 25];(3):259-72. Available from: https://periodicals.karazin.ua/eejp/article/view/26235