From aggregation-caused quenching to aggregation-induced delayed fluorescence: the impact of the effect of substituents
Yuqi Liu, Lijuan Wang, Lin Xu, Yan Song
Abstract
The electroluminescent mechanism of four imidazole-based luminogens are explored. Results show that introducing different substituents can change the molecules from aggregation-caused quenching to aggregation-induced delayed fluorescence.
Topics & Concepts
Quenching (fluorescence)FluorescencePhotochemistryAggregation-induced emissionElectroluminescenceImidazoleMoleculeMaterials scienceBiophysicsChemistryNanotechnologyStereochemistryOrganic chemistryOpticsPhysicsBiologyLayer (electronics)Luminescence and Fluorescent MaterialsOrganic Light-Emitting Diodes ResearchPerovskite Materials and Applications