Electronic Structure and Optical Response of Cs₂AgSbBr₆: A Lead-Free Double Perovskite for Sustainable PhotovoltaicsFahd Elmourabit, Yassine Essakali, Fatima Id Ouissaaden, Hamza Kamel, Mohssin Aoutoul and Said DlimiE3S Web Conf., 698 (2026) 02001DOI: https://doi.org/10.1051/e3sconf/202669802001