Green-Emitting Lead-Free Cs4SnBr6 Zero-Dimensional Perovskite Nanocrystals with Improved Air Stability

Green-Emitting Lead-Free Cs4SnBr6 Zero-Dimensional Perovskite Nanocrystals with Improved Air Stability

We report the synthesis and characterization of nanocrystals of a novel fully inorganic lead-free zero-dimensional perovskite, Cs4SnBr6. Samples are made of crystals with an average size of ∼20 nm with green emission centered around 530 nm. Interestingly, both colloidal suspensions and thin films sh...

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Veröffentlicht in:The journal of physical chemistry letters 2020-02, Vol.11 (3), p.618-623
Hauptverfasser: Chiara, Rossella, Ciftci, Yasemin O, Queloz, Valentin I. E, Nazeeruddin, Mohammad Khaja, Grancini, Giulia, Malavasi, Lorenzo
Format: Artikel
Sprache:eng
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Zusammenfassung:We report the synthesis and characterization of nanocrystals of a novel fully inorganic lead-free zero-dimensional perovskite, Cs4SnBr6. Samples are made of crystals with an average size of ∼20 nm with green emission centered around 530 nm. Interestingly, both colloidal suspensions and thin films show an enhanced air stability with respect to that of any other previous tin-based nanocrystalline system, with emission persisting for tens of hours under laboratory air.
ISSN:1948-7185
1948-7185
DOI:10.1021/acs.jpclett.9b03685