Back Cover: Benzochalcogenodiazole-Based Donor–Acceptor–Acceptor Molecular Donors for Organic Solar Cells (ChemSusChem 2/2014)

Authors

  • Hao-Chun Ting,

    1. Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)
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  • Yi-Hong Chen,

    1. Department of Materials Science and Engineering, National Tsing Hua University, Hsin Chu 30013 (Taiwan)
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  • Dr. Li-Yen Lin,

    1. Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)
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  • Shu-Hua Chou,

    1. Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)
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  • Yi-Hung Liu,

    1. Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)
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  • Prof. Hao-Wu Lin,

    Corresponding author
    1. Department of Materials Science and Engineering, National Tsing Hua University, Hsin Chu 30013 (Taiwan)
    • Hao-Wu Lin, Department of Materials Science and Engineering, National Tsing Hua University, Hsin Chu 30013 (Taiwan)

      Ken-Tsung Wong, Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)

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  • Prof. Ken-Tsung Wong

    Corresponding author
    1. Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)
    2. Institute of Atomic and Molecular Science Academia Sinica, Taipei 10617 (Taiwan)
    • Hao-Wu Lin, Department of Materials Science and Engineering, National Tsing Hua University, Hsin Chu 30013 (Taiwan)

      Ken-Tsung Wong, Department of Chemistry, National Taiwan University, Taipei 10617 (Taiwan)

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Abstract

original image

The back cover image shows the new donor–acceptor–acceptor (D–A–A)-type molecular donors combined with C70 that yield an efficient vacuum-processed organic solar cell. Wong and his co-workers show that the physical properties of the new D–A–A molecules with benzochalcogenodiazole as the central A unit can be subtly manipulated by tuning the chalcogens (O, S, Se). A clear structure–property–performance relationship has been successfully established, indicating that the donor molecule with a S-based electron-accepting core shows superior power conversion efficiency compared to those of O- and Se-embedded counterparts. The evident bimolecular recombination is responsible for the inferior performance of the benzoxadiazole-embedded donor. More details can be found in the Full Paper by Ting et al. on page 457 ff.

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