Defects, (Sb, Er) Dopant Interactions, and Band Gap Engineering in Cs2AgInCl6 Double Perovskites
In this work, the double perovskite Cs2AgInCl6 and its Sb3+- and Er3+-doped powders have been studied to understand how defects and dopants influence optical characteristics. Incomplete AgCl incorporation creates Vk and F centers, as well as defect-related In+ and Ag– states, leading to photoluminescence (PL) bands at...