SUPRAMOLECULAR ASSEMBLY OF HALIDE PEROVSKITE
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United States of America
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Feb 20, 2025
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Jun 21, 2024
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Jun 21, 2024
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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.
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