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Chemistry Letters
Vol. 44 (2015) No. 9 P 1248-1250




Highly luminescent phthalimide- and maleimide-based molecules having donor–acceptor–donor electronic configurations have been developed. A phthalimide-based material exhibited highly efficient green delayed fluorescence owing to its small singlet–triplet energy gap. An organic light-emitting diode using the molecules as an emitter exhibited a high maximum external electroluminescence quantum efficiency of 11.5%, which exceeds those obtained with common fluorescent emitters.

Copyright © 2015 The Chemical Society of Japan

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