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Ligand-mediated synthesis of compositionally related cesium lead halide CsPb2X5 nanowires with improved stability

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Abstract

Compositionally related cesium lead halide materials, such as CsPb2X5, have attracted great interest due to their considerable optoelectronic/optical properties as well as improved stability. Currently, CsPb2Br5 nanocrystals can be well-designed by tuning the ligands or precursor ratio, whereas, CsPb2X5 (with Cl or I) nanocrystals can only be obtained by the anion exchange method. Herein, we report a method to directly synthesize CsPb2X5 facilitated by thiol ligands. The morphology of CsPb2X5 can be designed as a nanowire. Importantly, the stability of directly synthesized CsPb2X5 nanowires is much improved when compared with the stabilities of the materials obtained by the anion-exchange method. We believe that this method will promote the application of 1D tetragonal CsPb2X5 in optoelectronics, optics and other fields.

Graphical abstract: Ligand-mediated synthesis of compositionally related cesium lead halide CsPb2X5 nanowires with improved stability

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Publication details

The article was received on 31 Jan 2018, accepted on 25 Mar 2018 and first published on 26 Mar 2018


Article type: Paper
DOI: 10.1039/C8NR00883C
Citation: Nanoscale, 2018, Advance Article
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    Ligand-mediated synthesis of compositionally related cesium lead halide CsPb2X5 nanowires with improved stability

    L. Ruan, J. Lin, W. Shen and Z. Deng, Nanoscale, 2018, Advance Article , DOI: 10.1039/C8NR00883C

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