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    High-performance quantum-dot solids via elemental sulfur synthesis

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    Type
    Article
    Authors
    Yuan, Mingjian
    Kemp, Kyle W.
    Thon, Susanna
    Kim, Jinyoung
    Chou, Kang Wei
    Amassian, Aram cc
    Sargent, E. H.
    KAUST Department
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Organic Electronics and Photovoltaics Group
    Physical Science and Engineering (PSE) Division
    Date
    2014-03-21
    Online Publication Date
    2014-03-21
    Print Publication Date
    2014-06
    Permanent link to this record
    http://hdl.handle.net/10754/563451
    
    Metadata
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    Abstract
    An elemental-sulfur-based synthesis is reported, which, combined with processing to improve the size dispersion and passivation, results in a low-cost high-quality platform for small-bandgap PbS-CQD-based devices. Size-selective precipitation and cadmium chloride passivation are used to improve the power conversion efficiency of 1 eV bandgap CQD photovoltaic devices dramatically, which leads to record power conversion efficiency for a 1 eV PbS CQD solar cell of 5.4%. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Citation
    Yuan, M., Kemp, K. W., Thon, S. M., Kim, J. Y., Chou, K. W., Amassian, A., & Sargent, E. H. (2014). High-Performance Quantum-Dot Solids via Elemental Sulfur Synthesis. Advanced Materials, 26(21), 3513–3519. doi:10.1002/adma.201305912
    Sponsors
    This publication is based in part on work supported by Award KUS-11009-21, made by King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, and by the Natural Sciences and Engineering Research Council (NSERC) of Canada. The authors thank Angstrom Engineering and Innovative Technology for useful discussions regarding material deposition methods and control of the glovebox environment, respectively. The research described in this paper was performed at the Canadian Light Source, which is funded by the Canada Foundation for Innovation, the Natural Sciences and Engineering Research Council of Canada, the National Research Council of Saskatchewan, Western Economic Diversification Canada, and the University of Saskatchewan. The authors would like to acknowledge the technical assistance and scientific guidance of C. Y. Kim, E. Palmiano, R. Wolowiec, and D. Kopilovic.
    Publisher
    Wiley
    Journal
    Advanced Materials
    DOI
    10.1002/adma.201305912
    ae974a485f413a2113503eed53cd6c53
    10.1002/adma.201305912
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; KAUST Solar Center (KSC)

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