Effect of mixed iodine and bromine on optical properties in methylammonium lead chlorine (MAPbCl3) spin-coated on the zinc oxide filmKlègayéré Emmanuel Koné, Amal Bouich, Donafologo Soro and Bernabé Marí SoucaseE3S Web Conf., 412 (2023) 01066DOI: https://doi.org/10.1051/e3sconf/202341201066