Defect-induced deep red luminescence of CaGdAlO4-type layered perovskites: multi-cationic sites partial/full substitution and application in pc-LED and plant lighting

A series of CaGdAlO 4 -type layered perovskite phosphors showing deep red luminescence ( λ em = 711 nm, λ ex = 338 nm) were synthesized via a solid-state reaction.