CHOWDHURY , Omkar; BHOWMIK , Utsa. Design and Optimization of Lead-Free Chalcogenide Perovskite Solar Cells: 30.64% Efficiency with MgHfS₃ Absorber. SciEn Conference Series: Engineering, Dhaka, Bangladesh, v. 4, p. 68–72, 2026. DOI: 10.38032/scse.2026.4.40. Disponível em: https://scienpg.com/scs/index.php/engineering/article/view/scse.2026.4.40. Acesso em: 5 aug. 2026.