An indolo[3,2,1-<i>jk</i>]carbazole-fused multiple resonance-induced thermally activated delayed fluorescence emitter for an efficient narrowband OLED
Xu‐Feng Luo, Hua‐Xiu Ni, Liangjun Shen, Lejia Wang, Xunwen Xiao, You‐Xuan Zheng
Abstract
]carbazole precursor, an efficient fused multiple resonance-induced thermally activated delayed fluorescence emitter was prepared, which exhibits a narrowband emission and a considerable reverse intersystem crossing rate. The corresponding organic light-emitting diode displays an external quantum efficiency of 27.2% with a suppressed efficiency roll-off.
Topics & Concepts
Intersystem crossingCarbazoleOLEDCommon emitterFluorescenceQuantum efficiencyNarrowbandMaterials scienceDiodePhotochemistryOptoelectronicsChemistryOpticsExcited statePhysicsAtomic physicsNanotechnologySinglet stateLayer (electronics)Organic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials