Kinetically regulated growth of CsPbBr 3 /CdSe core/shell quantum dots for stable light-emitting diodes

One-step core shell growth strategy is proposed, utilizing the activity difference between perovskite and shell precursors to achieve CdSe epitaxial growth. The optimal CsPbBr 3 /CdSe core/shell QD LED show a 13-fold extension in operational lifetime.