Advanced Materials

Functionalized Arylacetylene Oligomers for Organic Thin-Film Transistors (OTFTs)

Authors

  • V. A. L. Roy,

    1. Department of Chemistry and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong SAR (P. R. China)
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  • Y.-G. Zhi,

    1. Department of Chemistry and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong SAR (P. R. China)
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  • Z.-X. Xu,

    1. Department of Chemistry and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong SAR (P. R. China)
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  • S.-C. Yu,

    1. Department of Chemistry and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong SAR (P. R. China)
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  • P. W. H. Chan,

    1. Department of Chemistry and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong SAR (P. R. China)
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  • C.-M. Che

    1. Department of Chemistry and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong SAR (P. R. China)
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  • This work is supported by the University Development Fund (Nanotechnology Research Institute, 00600009) of The University of Hong Kong. We acknowledge Sunic System Ltd. for support of the fabrication system at The University of Hong Kong.

Abstract

Oligo(arylacetylene)-based organic thin-film transistors (OTFTs) possess good structural order and smooth film morphologies, and exhibit field-effect mobilities of 0.3 cm2 V–1 s–1, one of the highest field-effect mobilities reported for an OTFT device that does not possess a self-assembled-layer configuration. The Figure shows the measured output characteristics (drain–source current, IDS versus drain–source voltage, VDS) at different gate voltages (VG).

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