Perovskite spin light-emitting diodes with simultaneously high electroluminescence dissymmetry and high external quantum efficiency.

ABSTRACT: Realizing high electroluminescence dissymmetric factor and high external quantum efficiency at the same time is challenging in light-emitting diodes with direct circularly polarized emission. Here, we show that high electroluminescence dissymmetric factor and high external quantum efficiency can be simultaneously achieved in light-emitting diodes based on chiral perovskite quantum dots. Specifically, chiral perovskite quantum dots with chiral-induced spin selectivity can concurrently serve as localized radiative recombination centers of spin-polarized carriers for circularly polarized emission, thereby suppressing the relaxation of spins, Meanwhile, improving the chiral ligand exchange efficiency is found to synergistically promote their spin selectivity and optoelectronic properties so th

SUBMITTER: He S 

PROVIDER: S-EPMC11880525 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature