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Oriented Assembly of Lead Halide Perovskite Nanocrystals.
Liu, Lili; Kluherz, Kyle; Jin, Biao; Gamelin, Daniel R; De Yoreo, James J; Sushko, Maria L.
Afiliación
  • Liu L; Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
  • Kluherz K; Department of Chemistry, University of Washington, Seattle, Washington 98195, United States.
  • Jin B; Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
  • Gamelin DR; Department of Chemistry, University of Washington, Seattle, Washington 98195, United States.
  • De Yoreo JJ; Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
  • Sushko ML; Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98185, United States.
Nano Lett ; 24(11): 3299-3306, 2024 Mar 20.
Article en En | MEDLINE | ID: mdl-38442266
ABSTRACT
Cesium lead halide nanostructures have highly tunable optical and optoelectronic properties. Establishing precise control in forming perovskite single-crystal nanostructures is key to unlocking the full potential of these materials. However, studying the growth kinetics of colloidal cesium lead halides is challenging due to their sensitivity to light, electron beam, and environmental factors like humidity. In this study, in situ observations of CsPbBr3-particle dynamics were made possible through extremely low dose liquid cell transmission electron microscopy, showing that oriented attachment is the dominant pathway for the growth of single-crystal CsPbBr3 architectures from primary nanocubes. In addition, oriented assembly and fusion of ligand-stabilized cubic CsPbBr3 nanocrystals are promoted by electron beam irradiation or introduction of polar additives that both induce partial desorption of the original ligands and polarize the nanocube surfaces. These findings advance our understanding of cesium lead halide growth mechanisms, aiding the controlled synthesis of other perovskite nanostructures.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Lett Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos