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    Passivation Using Molecular Halides Increases Quantum Dot Solar Cell Performance

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    Type
    Article
    Authors
    Lan, Xinzheng
    Voznyy, Oleksandr cc
    Kiani, Amirreza
    García de Arquer, F. Pelayo
    Abbas, Abdullah Saud
    Kim, Gi-Hwan
    Liu, Mengxia
    Yang, Zhenyu cc
    Walters, Grant
    Xu, Jixian
    Yuan, Mingjian
    Ning, Zhijun
    Fan, Fengjia
    Kanjanaboos, Pongsakorn
    Kramer, Illan J. cc
    Zhitomirsky, David
    Lee, Philip
    Perelgut, Alexander
    Hoogland, Sjoerd
    Sargent, Edward H. cc
    KAUST Grant Number
    KUS-11-009-21
    Date
    2015-11-18
    Online Publication Date
    2015-11-18
    Print Publication Date
    2016-01
    Permanent link to this record
    http://hdl.handle.net/10754/599149
    
    Metadata
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    Abstract
    © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Here we report a solution-based passivation scheme is developed featuring the use of molecular iodine and PbS colloidal quantum dots (CQDs). The improved passivation translates into a longer carrier diffusion length in the solid film. This allows thicker solar-cell devices to be built while preserving efficient charge collection, leading to a certified power conversion efficiency of 9.9%, which is a new record in CQD solar cells.
    Citation
    Lan X, Voznyy O, Kiani A, García de Arquer FP, Abbas AS, et al. (2015) Passivation Using Molecular Halides Increases Quantum Dot Solar Cell Performance. Advanced Materials 28: 299–304. Available: http://dx.doi.org/10.1002/adma.201503657.
    Sponsors
    X.L., O.V., A.K., and F.P.G.A. contributed equally to this work. This publication is based in part on work supported by Award KUS-11-009-21, 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 and by the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea govenment Ministry of Knowledge Economy (2012T100100740). The authors thank E. Palmiano, L. Levina, A. Labelle, R. Wolowiec, and D. Kopilovic for their help over the course of this study.
    Publisher
    Wiley
    Journal
    Advanced Materials
    DOI
    10.1002/adma.201503657
    PubMed ID
    26576685
    ae974a485f413a2113503eed53cd6c53
    10.1002/adma.201503657
    Scopus Count
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