Nanostructured organic semiconductors via directed supramolecular assembly

Benjamin J. Rancatore, Clayton E. Mauldin, Shih Huang Tung, Cheng Wang, Alexander Hexemer, Joseph Strzalka, Jean M.J. Fréchet, Ting Xu

    Research output: Contribution to journalArticlepeer-review

    85 Scopus citations


    Organic small molecule semiconductors have many advantages over their polymer analogues. However, to fabricate organic semiconductor-based devices using solution processing, it is requisite to eliminate dewetting to ensure film uniformity and desirable to assemble nanoscopic features with tailored macroscopic alignment without compromising their electronic properties. To this end, we present a modular supramolecular approach. A quaterthiophene organic semiconductor is attached to the side chains of poly(4-vinylpyridine) via noncovalent hydrogen bonds to form supramolecular assemblies that act as p-type semiconductors in field-effect transistors. In thin films, the quaterthiophenes can be readily assembled into microdomains, tens of nanometers in size, oriented normal to the surface. The supramolecules exhibited the same field-effect mobilities as that of the quaterthiophene alone (10-4 cm 2/(V·s)). Since the organic semiconductors can be readily substituted, this modular supramolecular approach is a viable method for the fabrication of functional, nanostructured organic semiconductor films using solution processing.

    Original languageEnglish (US)
    Pages (from-to)2721-2729
    Number of pages9
    JournalACS Nano
    Issue number5
    StatePublished - May 25 2010


    • Charge mobility
    • Organic semiconductor
    • Supramolecular assembly
    • Thin film

    ASJC Scopus subject areas

    • General Materials Science
    • General Engineering
    • General Physics and Astronomy


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