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    Efficient small molecule bulk heterojunction solar cells with high fill factors via pyrene-directed molecular self-assembly

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    Type
    Article
    Authors
    Lee, Olivia P.
    Yiu, Alan T.
    Beaujuge, Pierre cc
    Woo, Claire
    Holcombe, Thomas W.
    Millstone, Jill E.
    Douglas, Jessica D.
    Chen, Mark S.
    Frechet, Jean cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Chemical Science Program
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Office of the VP
    Physical Science and Engineering (PSE) Division
    Date
    2011-10-21
    Online Publication Date
    2011-10-21
    Print Publication Date
    2011-12-01
    Permanent link to this record
    http://hdl.handle.net/10754/561901
    
    Metadata
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    Abstract
    Efficient organic photovoltaic (OPV) materials are constructed by attaching completely planar, symmetric end-groups to donor-acceptor electroactive small molecules. Appending C2-pyrene as the small molecule end-group to a diketopyrrolopyrrole core leads to materials with a tight, aligned crystal packing and favorable morphology dictated by π-π interactions, resulting in high power conversion efficiencies and high fill factors. The use of end-groups to direct molecular self-assembly is an effective strategy for designing high-performance small molecule OPV devices. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Sponsors
    This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Portions of this research were carried out at the Stanford Synchrotron Radiation Laboratory, a national user facility operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences. C.H.W. and T.W.H. thank the National Science Foundation for graduate student fellowships, and M.S.C. thanks the Camille and Henry Dreyfus Postdoctoral Program in Environmental Chemistry for fellowship. The authors thank Dr. Antonio DiPasquale for acquiring the crystal structure.
    Publisher
    Wiley
    Journal
    Advanced Materials
    DOI
    10.1002/adma.201103177
    PubMed ID
    22021084
    Relations
    Is Supplemented By:
    • [Dataset]
      Lee, O. P., Yiu, A. T., Beaujuge, P. M., Woo, C. H., Holcombe, T. W., Millstone, J. E., … Frechet, J. M. J. (2012). CCDC 831594: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/ccwxbmq. DOI: 10.5517/ccwxbmq HANDLE: 10754/624652
    ae974a485f413a2113503eed53cd6c53
    10.1002/adma.201103177
    Scopus Count
    Collections
    Articles; Biological and Environmental Sciences and Engineering (BESE) Division; Physical Science and Engineering (PSE) Division; Chemical Science Program; Material Science and Engineering Program; KAUST Solar Center (KSC)

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