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Toso, Stefano; Imran, Muhammad; Mugnaioli, Enrico; Moliterni, Anna; Caliandro, Rocco; Schrenker, Nadine J.; Pianetti, Andrea; Zito, Juliette; Zaccaria, Francesco; Wu, Ye; Gemmi, Mauro; Giannini, Cinzia; Brovelli, Sergio; Infante, Ivan; Bals, Sara; Manna, Liberato

Halide perovskites as disposable epitaxial templates for the phase-selective synthesis of lead sulfochloride nanocrystals

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  • Medientyp: E-Artikel
  • Titel: Halide perovskites as disposable epitaxial templates for the phase-selective synthesis of lead sulfochloride nanocrystals
  • Beteiligte: Toso, Stefano; Imran, Muhammad; Mugnaioli, Enrico; Moliterni, Anna; Caliandro, Rocco; Schrenker, Nadine J.; Pianetti, Andrea; Zito, Juliette; Zaccaria, Francesco; Wu, Ye; Gemmi, Mauro; Giannini, Cinzia; Brovelli, Sergio; Infante, Ivan; Bals, Sara; Manna, Liberato
  • Erschienen: Springer Science and Business Media LLC, 2022
  • Erschienen in: Nature Communications
  • Sprache: Englisch
  • DOI: 10.1038/s41467-022-31699-1
  • ISSN: 2041-1723
  • Schlagwörter: General Physics and Astronomy ; General Biochemistry, Genetics and Molecular Biology ; General Chemistry ; Multidisciplinary
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  • Beschreibung: <jats:title>Abstract</jats:title><jats:p>Colloidal chemistry grants access to a wealth of materials through simple and mild reactions. However, even few elements can combine in a variety of stoichiometries and structures, potentially resulting in impurities or even wrong products. Similar issues have been long addressed in organic chemistry by using reaction-directing groups, that are added to a substrate to promote a specific product and are later removed. Inspired by such approach, we demonstrate the use of CsPbCl<jats:sub>3</jats:sub> perovskite nanocrystals to drive the phase-selective synthesis of two yet unexplored lead sulfochlorides: Pb<jats:sub>3</jats:sub>S<jats:sub>2</jats:sub>Cl<jats:sub>2</jats:sub> and Pb<jats:sub>4</jats:sub>S<jats:sub>3</jats:sub>Cl<jats:sub>2</jats:sub>. When homogeneously nucleated in solution, lead sulfochlorides form Pb<jats:sub>3</jats:sub>S<jats:sub>2</jats:sub>Cl<jats:sub>2</jats:sub> nanocrystals. Conversely, the presence of CsPbCl<jats:sub>3</jats:sub> triggers the formation of Pb<jats:sub>4</jats:sub>S<jats:sub>3</jats:sub>Cl<jats:sub>2</jats:sub>/CsPbCl<jats:sub>3</jats:sub> epitaxial heterostructures. The phase selectivity is guaranteed by the continuity of the cationic subnetwork across the interface, a condition not met in a hypothetical Pb<jats:sub>3</jats:sub>S<jats:sub>2</jats:sub>Cl<jats:sub>2</jats:sub>/CsPbCl<jats:sub>3</jats:sub> heterostructure. The perovskite domain is then etched, delivering phase-pure Pb<jats:sub>4</jats:sub>S<jats:sub>3</jats:sub>Cl<jats:sub>2</jats:sub> nanocrystals that could not be synthesized directly.</jats:p>
  • Zugangsstatus: Freier Zugang