公开(公告)号：US20250059439A1

公开(公告)日：2025-02-20

申请号：US18751011

申请日：2024-06-21

Applicant: The Regents of the University of California

Inventor： Peidong Yang ,  Cheng Zhu ,  Heqing Zhu

IPC: C09K11/08

Abstract: Halide perovskite compounds comprising at least one metal cation, at least one halide anion, and at least one alkali metal-bound crown ether, such as (crown ether@A)2M(IV)X6, (crown ether@A)M(II)X4, or (crown ether@A)M(III)X5 (A=alkali metal cation, M=metal cation, X=halide anion), such as (18C6@K)2HfBr6, (18C6@K)2ZrCl4Br2, (18C6@Ba)MnBr4, and (18C6@Ba)SbCl5 are provided. Methods of generating such halide perovskite compounds are also provided. The halide perovskite compounds provided herein can have improved photoluminescence quantum yield (PLQY), improved tunability, improved purity, and/or improved stability relative to available halide perovskite compounds such as alkali metal cation vacancy-ordered perovskites.