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Gábor Méhes, Hiroko Nomura, Dr. Qisheng Zhang, Dr. Tetsuya Nakagawa and Prof. Dr. Chihaya Adachi Enhanced Electroluminescence Efficiency in a Spiro-Acridine Derivative through Thermally Activated Delayed Fluorescence Angewandte Chemie International Edition 51

Version of Record online: 8 OCT 2012 | DOI: 10.1002/anie.201206289

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Make your OLED fluorescent: An aromatic molecule based on a spiro-acridine derivative was designed (see picture), and its photoluminescence and electroluminescence were characterized. By combining the donor and acceptor moieties a small energy gap between the lowest singlet and triplet states was achieved. This design leads to an organic light-emitting diode (OLED) that rivals phosphorescent devices regarding exciton generation efficiency.

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