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Harvesting Triplet Excitons from Fluorescent Blue Emitters in White Organic Light-Emitting Diodes


  • The authors thank Martin Ammann for CV measurements and Sven Murano from Novaled AG, Dresden, for helpful discussions.


A novel concept for white organic light emitting diodes (OLEDs) enabling the utilization of all electrically generated excitons for light generation is introduced. The key feature is a fluorescent blue emitter with high triplet energy, rendering it possible to harvest its triplet excitons by letting them diffuse to an orange phosphorescent iridium complex.

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