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    The Benefit and Challenges of Zero-Dimensional Perovskites

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    Type
    Article
    Authors
    Almutlaq, Jawaher cc
    Yin, Jun cc
    Mohammed, Omar F. cc
    Bakr, Osman cc
    KAUST Department
    Chemical Science Program
    Functional Nanomaterials Lab (FuNL)
    KAUST Catalysis Center (KCC)
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
    Date
    2018-06-28
    Online Publication Date
    2018-06-28
    Print Publication Date
    2018-07-19
    Permanent link to this record
    http://hdl.handle.net/10754/630450
    
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    Abstract
    To break free of the limitations imposed by three-dimensional (3D) perovskites, such as their lackluster stability, researchers have opened new frontiers into lower-dimensional perovskite derivatives. Thanks to advances in solvent-based synthesis methods, zero-dimensional (0D) inorganic perovskites, mainly Cs4PbBr6, have recently reemerged in various forms (from single crystals to nanocrystals) as materials with properties that bridge organic molecules and inorganic semiconductors. These properties include intrinsic Pb2+ ion emission, large exciton binding energy, and small polaron formation upon photoexcitation, in addition to anomalous green photoluminescence with improved stability and high quantum yield. Moreover, the demonstration of Cs4PbBr6-based light-emitting diode (LED) devices highlights the accelerating efforts toward their applications and motivates further investigations of these emerging materials. This Perspective summarizes the progress in the field of Cs4PbBr6 perovskites, focusing on their molecular-electronic properties and hotly debated green photoluminescence. We conclude by presenting the implications of the unique findings and suggesting opportunities for the future development and applications of these 0D perovskites.
    Citation
    Almutlaq J, Yin J, Mohammed OF, Bakr OM (2018) The Benefit and Challenges of Zero-Dimensional Perovskites. The Journal of Physical Chemistry Letters 9: 4131–4138. Available: http://dx.doi.org/10.1021/acs.jpclett.8b00532.
    Sponsors
    This work was supported by King Abdullah University of Science and Technology (KAUST).
    Publisher
    American Chemical Society (ACS)
    Journal
    The Journal of Physical Chemistry Letters
    DOI
    10.1021/acs.jpclett.8b00532
    Additional Links
    https://pubs.acs.org/doi/10.1021/acs.jpclett.8b00532
    https://doi.org/10.1021/acs.jpclett.8b00532
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.jpclett.8b00532
    Scopus Count
    Collections
    Articles; 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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