A highly efficient near infrared organic solid fluorophore based on naphthothiadiazole derivatives with aggregation-induced emission enhancement for a non-doped electroluminescent device
Patteera Funchien, Pongsakorn Chasing, Taweesak Sudyoadsuk, Vinich Promarak
Abstract
Two regioisomers of naphthothiadiazole derivatives with aggregation-induced emission enhancement exhibited a strong solid-state fluorescence emission in the range of 666-760 nm. A non-doped EL device emitted brilliant near infrared emission peaked at 754 nm with a high maximum radiance of 22 050 mW Sr-1 m-2, an EQE as high as 1.48%, and relatively low efficiency roll-off.
Topics & Concepts
FluorophoreElectroluminescenceDopingAggregation-induced emissionFluorescenceMaterials sciencePhotochemistryInfraredNear-infrared spectroscopyOptoelectronicsOLEDChemistryNanotechnologyOpticsPhysicsLayer (electronics)Organic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsOrganic Electronics and Photovoltaics