Spiral Donor Design Strategy for Blue Thermally Activated Delayed Fluorescence Emitters
Wei Li, Mengke Li, Wenqi Li, Zhida Xu, Lin Gan, Kunkun Liu, Nan Zheng, Chengyun Ning, Dongcheng Chen, Yuan‐Chun Wu, Shi‐Jian Su
Abstract
CT) state, which may open another RISC channel. Remarkably, in company with the optimized molecular structure and energy alignment, the pivotal TADF emitter DspiroS-TRZ achieved 99.9% PLQY, an external quantum efficiency (EQE) of 38.4%, which is the highest among all blue TADF emitters reported to date.
Topics & Concepts
Intersystem crossingSinglet stateMaterials scienceExcited stateOLEDTriplet stateDensity functional theoryPhotochemistryAcceptorGround stateAtomic physicsChemical physicsMolecular physicsChemistryNanotechnologyPhysicsComputational chemistryCondensed matter physicsLayer (electronics)Organic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsOrganic Electronics and Photovoltaics