Structure–Property Relationships: Effects of Heteroatom Substitutions on the Crystal Structure, Film Formation, and Optoelectronic Properties of Diketopyrrolopyrrole-Based Materials (Adv. Funct. Mater. 1/2013)

Authors

  • Jianhua Liu,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, USA
    Search for more papers by this author
  • Bright Walker,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, USA
    Current affiliation:
    1. Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology, Ulsan 689–798, Republic of Korea
    Search for more papers by this author
  • Arnold Tamayo,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, USA
    Current affiliation:
    1. Next Energy Technologies, 5385 Hollister Avenue, Santa Barbara, CA 93111, USA
    Search for more papers by this author
  • Yuan Zhang,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, USA
    Search for more papers by this author
  • Thuc-Quyen Nguyen

    Corresponding author
    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, USA
    • Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, CA 93106, USA.
    Search for more papers by this author

Abstract

original image

Heteroatom substitutions in the end-groups of three diketopyrrolopyrrole-containing small molecules are investigated to evaluate how such substitutions affect physical properties, charge transport, and the performance in bulk heterojunction solar cells. As reported by Thuc-Quyen Nguyen and co-workers on page 47, the single-crystal structures of three compounds reveal the differences in material properties arise from changes in intra- and intermolecular interactions in the solid state, which are caused by heteroatom substitutions. This study demonstrates a systematic investigation of structure-property relationships in conjugated small molecules.

Ancillary