Multi-color light-emitting transistors composed of organic single crystals

Yohei Yomogida, Hayato Sakai, Kosuke Sawabe, Shota Gocho, Satria Zulkarnaen Bisri, Hajime Nakanotani, Chihaya Adachi, Taku Hasobe, Yoshihiro Iwasa, Taishi Takenobu

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    We report a novel concept for multi-color light emission from an ambipolar organic single-crystal transistor using natural optical waveguides, the self-absorption effect, Davydov splitting and the unique alignment of the transition dipole moments. We used 9,10-bis-(2,2-diphenylvinyl)-anthracene single crystals to produce blue and green light from identical single-crystal transistors. We also observed red light, which corresponds to the emission from in-gap states that are caused by impurities. Importantly, each of these different colors corresponds to a distinguishable light polarization, which enables us to tune the emission color by using a light polarizer.

    Original languageEnglish
    Pages (from-to)2737-2742
    Number of pages6
    JournalOrganic Electronics: physics, materials, applications
    Volume14
    Issue number11
    DOIs
    Publication statusPublished - 2013

    Keywords

    • Ambipolar transistors
    • Light-emitting transistors
    • Organic single crystal

    ASJC Scopus subject areas

    • Biomaterials
    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry
    • Electrical and Electronic Engineering
    • Chemistry(all)
    • Condensed Matter Physics

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