New π-extended triphenylene-based organic semiconductors in field-effect transistors

Mai Ha Hoang, Duc Nghia Nguyen, Trinh Tung Ngo, Min Ju Cho, Suk Joong Lee, Dong Hoon Choi

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    We demonstrated the synthesis of two new solution-processed triphenylene-based semiconductors and characterized their physical, optical, and electrochemical properties. Both were intriguingly capable of producing smooth films and high-quality microcrystalline objects. The single-crystal-based field-effect transistors (FETs) using these semiconductors displayed a maximum carrier mobility of ∼0.03 cm2 V-1 s-1 and a high on/off current ratio of ∼103. Notably, the mobilities of the single-crystal-based FETs were measured to be two orders of magnitude greater than those of the thin-film transistors. To our knowledge, the carrier mobility obtained in this work is the highest ever reported for single-crystal FETs made of triphenylene analogues.

    Original languageEnglish
    Article number15069
    Pages (from-to)434-440
    Number of pages7
    JournalSynthetic Metals
    Volume209
    DOIs
    Publication statusPublished - 2015 Nov 1

    Bibliographical note

    Publisher Copyright:
    © 2015 Elsevier B.V.

    Keywords

    • Conjugated molecule
    • Field-effect transistor
    • Mobility
    • Organic semiconductor
    • Triphenylene

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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