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    Electron-deficient N-alkyloyl derivatives of thieno[3,4-c]pyrrole-4,6-dione yield efficient polymer solar cells with open-circuit voltages > 1 v

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    Type
    Article
    Authors
    Warnan, Julien
    Cabanetos, Clement
    Bude, Romain
    El Labban, Abdulrahman cc
    Li, Liang
    Beaujuge, Pierre cc
    KAUST Department
    Advanced Nanofabrication, Imaging and Characterization Core Lab
    Biological and Environmental Sciences and Engineering (BESE) Division
    Chemical Science Program
    Core Labs
    Imaging and Characterization Core Lab
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2014-04-21
    Online Publication Date
    2014-04-21
    Print Publication Date
    2014-05-13
    Permanent link to this record
    http://hdl.handle.net/10754/563544
    
    Metadata
    Show full item record
    Abstract
    Poly(benzo[1,2-b:4,5-b′]dithiophene-thieno[3,4-c]pyrrole-4,6-dione) (PBDTTPD) polymer donors yield some of the highest open-circuit voltages (V OC, ca. 0.9 V) and fill factors (FF, ca. 70%) in conventional bulk-heterojunction (BHJ) solar cells with PCBM acceptors. Recent work has shown that the incorporation of ring substituents into the side chains of the BDT motifs in PBDTTPD can induce subtle variations in material properties, resulting in an increase of the BHJ device VOC to ∼1 V. In this contribution, we report on the synthesis of N-alkyloyl-substituted TPD motifs (TPD(CO)) and show that the electron-deficient motifs can further lower both the polymer LUMO and HOMO levels, yielding device VOC > 1 V (up to ca. 1.1 V) in BHJ solar cells with PCBM. Despite the high VOC achieved (i.e., low polymer HOMO), BHJ devices cast from TPD(CO)-based polymer donors can reach power conversion efficiencies (PCEs) of up to 6.7%, making these promising systems for use in the high-band-gap cell of tandem solar cells. © 2014 American Chemical Society.
    Citation
    Warnan, J., Cabanetos, C., Bude, R., El Labban, A., Li, L., & Beaujuge, P. M. (2014). Electron-Deficient N-Alkyloyl Derivatives of Thieno[3,4-c]pyrrole-4,6-dione Yield Efficient Polymer Solar Cells with Open-Circuit Voltages > 1 V. Chemistry of Materials, 26(9), 2829–2835. doi:10.1021/cm5002303
    Sponsors
    The authors acknowledge financial support under Baseline Research Funding from King Abdullah University of Science and Technology (KAUST). The authors thank KAUST Analytical Core Laboratories for mass spectrometry, SEC measurements, and elemental analyses, and Sandra Seywald (MPIP - Mainz, Germany) for additional SEC measurements. The authors thank the Advanced Imaging and Characterization Laboratories at KAUST for technical support. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource user facility, operated by Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.
    Publisher
    American Chemical Society (ACS)
    Journal
    Chemistry of Materials
    DOI
    10.1021/cm5002303
    Relations
    Is Supplemented By:
    • [Dataset]
      Warnan, J., Cabanetos, C., Bude, R., El Labban, A., Li, L., & Beaujuge, P. M. (2014). CCDC 1029500: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/cc13k8pm. DOI: 10.5517/cc13k8pm HANDLE: 10754/624376
    ae974a485f413a2113503eed53cd6c53
    10.1021/cm5002303
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Chemical Science Program; Material Science and Engineering Program; KAUST Solar Center (KSC)

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