Realization of highly efficient organic emitting diodes using thermally activated delayed fluorescence (TADF) materials with fast reverse intersystem crossing
Zhao Song, Tingting Yang, Huixia Xu, Feng Wang, Yali Peng, Yuqin Du, Kang Chen, Yanqin Miao, Hua Wang
Abstract
Three TADF emitters with hydrogen bonds are designed and synthesized. The rate constant of reverse intersystem crossing is enhanced. The external quantum efficiency reaches 25.1% with blue emission peaks at 480 nm.
Topics & Concepts
Intersystem crossingMaterials scienceQuantum efficiencyOLEDFluorescenceOptoelectronicsRealization (probability)PhotochemistryDiodeNanotechnologyOpticsAtomic physicsExcited stateChemistryPhysicsMathematicsLayer (electronics)Singlet stateStatisticsOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsOrganic Electronics and Photovoltaics