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    Inside Perovskites: Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals

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    acs.chemmater.7b02415.pdf
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    Type
    Article
    Authors
    de Bastiani, Michele
    Dursun, Ibrahim cc
    Zhang, Yuhai cc
    Alshankiti, Buthainah cc
    Miao, Xiaohe
    Yin, Jun cc
    Yengel, Emre cc
    Alarousu, Erkki
    Turedi, Bekir
    Almutlaq, Jawaher cc
    Saidaminov, Makhsud I. cc
    Mitra, Somak cc
    Gereige, Issam
    Alsaggaf, Ahmed cc
    Zhu, Yihan
    Han, Yu cc
    Roqan, Iman S. cc
    Bredas, Jean-Luc cc
    Mohammed, Omar F. cc
    Bakr, Osman cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Science Program
    Functional Nanomaterials Lab (FuNL)
    Imaging and Characterization Core Lab
    KAUST Catalysis Center (KCC)
    KAUST Solar Center (KSC)
    Laboratory for Computational and Theoretical Chemistry of Advanced Materials
    Material Science and Engineering Program
    Nanostructured Functional Materials (NFM) laboratory
    Physical Characterization
    Physical Science and Engineering (PSE) Division
    Semiconductor and Material Spectroscopy (SMS) Laboratory
    Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
    Date
    2017-08-22
    Online Publication Date
    2017-08-22
    Print Publication Date
    2017-09-12
    Permanent link to this record
    http://hdl.handle.net/10754/625296
    
    Metadata
    Show full item record
    Abstract
    Zero-dimensional perovskite-related structures (0D-PRS) are a new frontier of perovskite-based materials. 0D-PRS, commonly synthesized in powder form, manifest distinctive optical properties such as strong photoluminescence (PL), narrow emission linewidth, and high exciton binding energy. These properties make 0D-PRS compelling for several types of optoelectronic applications, including phosphor screens and electroluminescent devices. However, it would not be possible to rationally design the chemistry and structure of these materials, without revealing the origins of their optical behaviour, which is contradictory to the well-studied APbX3 perovskites. In this work, we synthesize single crystals of Cs4PbBr6 0D-PRS, and investigated the origins of their unique optical and electronic properties. The crystals exhibit a PL quantum yield higher than 40%, the highest reported for perovskite-based single crystals. Time-resolved and temperature dependent PL studies, supported by DFT calculations, and structural analysis, elucidate an emissive behaviour reminiscent of a quantum confined structure rather than a typical bulk perovskite material.
    Citation
    De Bastiani M, Dursun I, Zhang Y, Alshankiti BA, Miao X-H, et al. (2017) Inside Perovskites: Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals. Chemistry of Materials. Available: http://dx.doi.org/10.1021/acs.chemmater.7b02415.
    Sponsors
    The authors acknowledge the financial support of KAUST and Saudi Aramco (Grant RGC/3/3095-01).
    Publisher
    American Chemical Society (ACS)
    Journal
    Chemistry of Materials
    DOI
    10.1021/acs.chemmater.7b02415
    Additional Links
    http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b02415
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.chemmater.7b02415
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Chemical Science Program; Material Science and Engineering Program; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC)

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