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

Sen Wu, Ya-Nan Hu, Dianming Sun*, Kai Wang, Xiao-Hong Zhang*, Eli Zysman-Colman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

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 EQEmax of 15.3% with an efficiency roll-off of 35% at 100 cd m−2.
Original languageEnglish
Pages (from-to)2489-2492
Number of pages4
JournalChemical Communications
Volume60
Issue number18
Early online date22 Dec 2023
DOIs
Publication statusPublished - 4 Mar 2024

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