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

ABSTRACT: 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.

SUBMITTER: Chiara R

PROVIDER: S-EPMC7901651 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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

Chiara Rossella R Ciftci Yasemin O YO Queloz Valentin I E VIE Nazeeruddin Mohammad Khaja MK Grancini Giulia G Malavasi Lorenzo L

The journal of physical chemistry letters 20200109 3

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. ...[more]

PMID: 31904967

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