SURFACE ENGINEERED ORGANIC-INORGANIC HYBRID PEROVSKITE NANOCRYSTALS AND APPLICATIONS THEREOF

    公开(公告)号:US20220306936A1

    公开(公告)日:2022-09-29

    申请号:US17413271

    申请日:2019-10-11

    摘要: In one aspect, organic-inorganic nanoparticle compositions are described herein comprising engineered surfaces which, in some embodiments, reduce non-radiative recombination mechanisms, thereby providing optoelectronic devices with enhanced efficiencies. In some embodiments, a nanoparticle composition comprises a layer of organic-inorganic perovskite nanocrystals, the organic-inorganic perovskite nanocrystals comprising surfaces associated with growth passivation ligands and trap passivation ligands, wherein the growth passivation ligands are larger than the trap passivation ligands and are of size unable to incorporate into octahedral corner sites of the perovskite crystal structure.