Synthesis and Self-Assembly of Donor–Acceptor–Donor Based Oligothiophenes and Their Optoelectronic Properties

Raja Bhaskar Kanth Siram, Kristen Tandy, Marta Horecha, Petr Formanek, Manfred Stamm, Suren Gevorgyan, Frederik C Krebs, Anton Kiriy, Paul Meredith, Paul L. Burn, Ebinazar B. Namdas, Satish Patil

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    Abstract

    In this work, the synthesis of an oligothiophene having a donor–acceptor–donor (D–A–D) chromophore with hydrogen bonding groups is described. The D–A–D molecule was demonstrated to self-organize via intermolecular H-bonding between barbituric acid units. Interactions between the oligothiophene subunits were also found to be important, affording nanoribbons that could be observed by atomic force and transmission electron microscopy. The applicability of the oligothiophene for organic electronic applications was investigated by fabricating organic field-effect transistors (OFETs) and organic photovoltaic devices. The OFET measurements yielded p-type mobility of 7 × 10–7 cm2/(V s), and when blended with C60-PCBM, the photovoltaic efficiency was observed to be 0.18%.
    Original languageEnglish
    JournalJournal of Physical Chemistry Part C: Nanomaterials and Interfaces
    Volume115
    Issue number29
    Pages (from-to)14369-14376
    ISSN1932-7447
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Polymer solar cells

    Cite this

    Siram, R. B. K., Tandy, K., Horecha, M., Formanek, P., Stamm, M., Gevorgyan, S., Krebs, F. C., Kiriy, A., Meredith, P., Burn, P. L., Namdas, E. B., & Patil, S. (2011). Synthesis and Self-Assembly of Donor–Acceptor–Donor Based Oligothiophenes and Their Optoelectronic Properties. Journal of Physical Chemistry Part C: Nanomaterials and Interfaces, 115(29), 14369-14376. https://doi.org/10.1021/jp204271c