Highly efficient phosphorescent organic light-emitting diodes based on novel bipolar iridium complexes with easily-tuned emission colors by adjusting fluorine substitution on phenylpyridine ligands
Shuonan Chen, Xi Gai, Jie Liang, Kaiqi Ye, Yu Liu, Yue Wang
Abstract
Two novel heteroleptic iridium complexes’ emitting colors can be tuned easily by adjusting F/CF<sub>3</sub>-substituted cyclometalated ligands, which achieved very high EL efficiency level with peak EQE values of >20% at wide concentration range of 8-25%.
Topics & Concepts
IridiumPhosphorescenceMaterials scienceOLEDFluorineOptoelectronicsDiodeQuantum efficiencyPhotochemistryRange (aeronautics)NanotechnologyFluorescenceCatalysisOpticsOrganic chemistryChemistryLayer (electronics)PhysicsMetallurgyComposite materialOrganic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials