Low efficiency roll-off blue TADF OLEDs employing a novel acridine–pyrimidine based high triplet energy host
Francesco Rodella, Rishabh Saxena, Sergey Bagnich, Dovydas Banevičius, Gediminas Kreiza, Stavros Athanasopoulos, Saulius Juršėnas, Karolis Kazlauskas, Anna Köhler, Peter Strohriegl
Abstract
A novel pyrimidine-based host material with a triplet energy of 3.07 eV was synthesized. Sky blue and blue OLEDs were fabricated, obtaining high external quantum efficiency and extremely low efficiency roll-off.
Topics & Concepts
OLEDMaterials scienceOptoelectronicsAcridineQuantum efficiencyPyrimidineHost (biology)PhotochemistryNanotechnologyChemistryBiologyOrganic chemistryLayer (electronics)StereochemistryEcologyOrganic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsThin-Film Transistor Technologies