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

作者信息

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

机构信息

Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, UK.

Institute of Functional Nano & Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, P. R. China.

出版信息

Chem Commun (Camb). 2024 Feb 27;60(18):2489-2492. doi: 10.1039/d3cc05761e.

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 of 15.3% with an efficiency roll-off of 35% at 100 cd m.