International Display Workshops General Incorporated Association

17:00 〜 17:20

[OLED1-2(Invited)] Design of High Performance Organic Thermally Activated Delayed Fluorescence Dendrimer Emitters for Solution-Processed Organic Light-Emitting Diodes

Dianming Sun1、Anna Köhler2、*Eli Zysman-Colman1 (1.University of St Andrews (UK)、2.University of Bayreuth (Germany))

thermally activated delayed fluorescence, dendrimer, solution-processed organic light-emitting diodes

https://doi.org/10.36463/idw.2021.0339

We report a family of thermally activated delayed fluorescence (TADF) dendrimers that exhibit both vanishingly small singlet-triplet gaps and large oscillator strengths. Host-free green solution-processed OLEDs show outstanding maximum external quantum efficiencies of up to 28.7%, current efficiencies of 98.8 cd A-1 and power efficiencies of 91.3 lm W-1.