Reviving optically-deficient CsPbCl₃: Ce³⁺/chiral-ligand synergy enables visible-light-driven radical cascades.

NCs, coupled with electron spin polarization arising from chiral microenvironments, promotes charge separation. Consequently, the obtained chiral perovskite NCs exhibit promising catalytic performance in the radical cascade cyclization of N-phenylmaleimide and N-phenylglycine in dichloroethane under violet LED (400-410 nm) irradiation, achieving substrate conversion rates exceeding 70%. This work offers an approach to fabricating stable chiral perovskite NCs through the synergistic integration of ion doping and surface ligand engineering. Furthermore, it provides a versatile platform for visible-light-driven chemical conversions, with potential applications in chiral catalysis and related fields.