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    Self-Assembled PbSe Nanowire:Perovskite Hybrids

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    Type
    Article
    Authors
    Yang, Zhenyu cc
    Yassitepe, Emre
    Voznyy, Oleksandr cc
    Janmohamed, Alyf
    Lan, Xinzheng
    Levina, Larissa
    Comin, Riccardo
    Sargent, Edward H. cc
    KAUST Grant Number
    KUS-11-009-21
    Date
    2015-11-19
    Online Publication Date
    2015-11-19
    Print Publication Date
    2015-12-02
    Permanent link to this record
    http://hdl.handle.net/10754/599577
    
    Metadata
    Show full item record
    Abstract
    © 2015 American Chemical Society. Inorganic semiconductor nanowires are of interest in nano- and microscale photonic and electronic applications. Here we report the formation of PbSe nanowires based on directional quantum dot alignment and fusion regulated by hybrid organic-inorganic perovskite surface ligands. All material synthesis is carried out at mild temperatures. Passivation of PbSe quantum dots was achieved via a new perovskite ligand exchange. Subsequent in situ ammonium/amine substitution by butylamine enables quantum dots to be capped by butylammonium lead iodide, and this further drives the formation of a PbSe nanowire superlattice in a two-dimensional (2D) perovskite matrix. The average spacing between two adjacent nanowires agrees well with the thickness of single atomic layer of 2D perovskite, consistent with the formation of a new self-assembled semiconductor nanowire:perovskite heterocrystal hybrid.
    Citation
    Yang Z, Yassitepe E, Voznyy O, Janmohamed A, Lan X, et al. (2015) Self-Assembled PbSe Nanowire:Perovskite Hybrids. Journal of the American Chemical Society 137: 14869–14872. Available: http://dx.doi.org/10.1021/jacs.5b10641.
    Sponsors
    This publication is based in part on supported by Award KUS-11-009-21, from King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund-Research Excellence Program, by the Natural Sciences and Engineering Research Council of Canada (NSERC), and by the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (2012T100100740). A.J. thanks NSERC for Undergraduate Student Research Award Funding. E.Y. acknowledges support from FAPESP-BEPE fellowship (2014/18327-9). The authors thank E. Palmiano, L. Levina, R. Wolowiec, and D. Kopilovic for helpful discussions.
    Publisher
    American Chemical Society (ACS)
    Journal
    Journal of the American Chemical Society
    DOI
    10.1021/jacs.5b10641
    PubMed ID
    26565433
    ae974a485f413a2113503eed53cd6c53
    10.1021/jacs.5b10641
    Scopus Count
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