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Issue 29, 2018
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Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals

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Abstract

Perovskite-phase cesium bismuth halide (Cs3Bi2X9; X = Cl, Br, I) nanocrystals were synthesized using a hot-injection approach. These nanocrystals adopted ordered-vacancy perovskite crystal structures and demonstrated composition-tunable optical properties. Growth occurred by initial formation of Bi0 seeds, and morphology was controlled by precursor and seed concentration. The Cs3Bi2I9 nanocrystals demonstrated excellent stability under ambient conditions for several months. Contrary to previous reports, we find that photoluminescence originates from the precursor material as opposed to the Cs3Bi2X9 nanocrystals.

Graphical abstract: Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals

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Publication details

The article was received on 15 Sep 2017, accepted on 12 Mar 2018 and first published on 13 Mar 2018


Article type: Communication
DOI: 10.1039/C7CC07223F
Citation: Chem. Commun., 2018,54, 3640-3643
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    Synthesis and optical properties of ordered-vacancy perovskite cesium bismuth halide nanocrystals

    R. D. Nelson, K. Santra, Y. Wang, A. Hadi, J. W. Petrich and M. G. Panthani, Chem. Commun., 2018, 54, 3640
    DOI: 10.1039/C7CC07223F

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