A fluorene-bridged double carbonyl/amine multiresonant thermally activated delayed fluorescence emitter for efficient green OLEDs.

Sen WuYa-Nan HuDianming SunKai Wang Xiao-Hong Zhang Eli Zysman-Colman

Published in: Chemical communications (Cambridge, England) (2024)

Herein, we report a fluorene-bridged double carbonyl/amine-based MR TADF emitter DDiKTa-F, formed by locking the conformation of the previously reported compound DDiKTa. Using this strategy, DDiKTa-F exhibited narrower, brighter, and red-shifted emission. The OLEDs with DDiKTa-F emitted at 493 nm and showed an EQE max of 15.3% with an efficiency roll-off of 35% at 100 cd m -2 .

Keyphrases

light emitting
photodynamic therapy
single molecule
magnetic resonance
molecular dynamics simulations
computed tomography