Manipulating Förster and Dexter interactions between a thermally activated delayed fluorescence host and a phosphorescent dopant for highly efficient solution-processed red and white OLEDs
Yang Tang, Yuan Liu, Weiming Ning, Lisi Zhan, Junqiao Ding, Maolin Yu, Hengjia Liu, Yuhan Gao, Guohua Xie, Chuluo Yang
Abstract
A blue TADF host with and without steric hindrances was utilized to manipulate Fӧrster and Dexter interactions with a red phosphorescent iridium complex, realizing the state-of-the-art PhOLEDs with a sufficiently high EQE of 22.2%.
Topics & Concepts
PhosphorescenceIridiumDopantMaterials sciencePhosphorescent organic light-emitting diodeOLEDFluorescenceSteric effectsPhotochemistryHost (biology)OptoelectronicsDopingNanotechnologyChemistryOpticsPhysicsStereochemistryOrganic chemistryBiologyCatalysisLayer (electronics)EcologyOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsCatalytic Cross-Coupling Reactions