Efficiency of Heterojunction Solar Cells Based on Optical Band Gap. Iraqi Journal of Physics, [S. l.], v. 22, n. 3, p. 139–149, 2024. DOI: 10.30723/ijp.v22i3.1270. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1270.. Acesso em: 1 sep. 2024.