Stable and multicolor solid-state luminescence of Mn doped CsPb(Cl/Br)3 perovskite quantum dots and its application in light-emitting diodes

Abstract Mn2+ doping has been developed to modulate the photoluminescence (PL) of CsPbCl3 perovskite quantum dots (PQDs). However, the doped Mn2+ may be expelled from the PQDs host with the long-term storing, resulting in inferior stability. Herein, CsPbCl3 PQDs doped with different concentrations of Mn2+ (Mn:CsPbCl3) are prepared by a hot injection method. Our photostability tests reveal that when the doping concentration is