Achievement of high efficiency with extremely low efficiency roll-off in solution-processed thermally activated delayed fluorescence OLEDs manufactured using xanthone-based bipolar host materials
Chae Yeong Kim, Chiho Lee, Hyung Jong Kim, Jinhyo Hwang, Mallesham Godumala, Ji‐Eun Jeong, Han Young Woo, Min Ju Cho, Sungnam Park, Dong Hoon Choi
Abstract
Two bipolar hosts as structural isomers were designed and synthesized for solution-processable green TADF-OLEDs. Corresponding devices showed excellent EQE over 21% and low efficiency roll-off.
Topics & Concepts
OLEDMaterials scienceXanthoneOptoelectronicsFluorescenceHost (biology)Quantum efficiencyNanotechnologyOpticsOrganic chemistryChemistryBiologyEcologyPhysicsLayer (electronics)Organic Light-Emitting Diodes ResearchGreen IT and SustainabilityImage and Video Quality Assessment