Modular Synthesis of Aromatic Hydrocarbon Macrocycles for Simplified, Single-Layer Organic Light-Emitting Devices

Koki Ikemoto, Asami Yoshii, Tomoo Izumi, Hideo Taka, Hiroshi Kita, Jing Yang Xue, Ryo Kobayashi, Sota Sato, Hiroyuki Isobe

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    A method for the modular synthesis of aromatic hydrocarbon macrocycles has been developed for base materials in single-layer organic light-emitting devices. The method with Ir-catalyzed direct C-H borylation and Suzuki-Miyaura coupling was concise and scalable, which allowed for a gram-scale preparation of aromatic hydrocarbon macrocycles that have bulky substituents at the periphery. The new arylated hydrocarbon macrocycles enabled a quantitative electro-optical conversion in organic light-emitting devices with a phosphorescent emitter, which is, notably, in a single-layer architecture consisting of two regions of doped and undoped materials. The highest external quantum efficiencies reached 24.8%, surpassing those of previous hydrocarbon base materials.

    Original languageEnglish
    Pages (from-to)662-666
    Number of pages5
    JournalJournal of Organic Chemistry
    Volume81
    Issue number2
    DOIs
    Publication statusPublished - 2016 Jan 15

    ASJC Scopus subject areas

    • Organic Chemistry

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