Self-absorption-free excited-state intramolecular proton transfer (ESIPT) emitters for high brightness and luminous efficiency organic fluorescent electroluminescent devices
Jakkapan Kumsampao, Chaiyon Chaiwai, Chattarika Sukpattanacharoen, Thanyarat Chawanpunyawat, Phattananawee Nalaoh, Pongsakorn Chasing, Nawee Kungwan, Taweesak Sudyoadsuk, Vinich Promarak
Abstract
ESIPT derivatives functionalized with <italic>N</italic>-electron donating moieties show pure keto form emissions with high solid-state fluorescence. As emitters, their OLEDs exhibit exceptionally high brightness (41 292–44 820 cd m<sup>−2</sup>) and high luminous efficiency (8.41–10.30 cd A<sup>−1</sup>).
Topics & Concepts
FluorescenceBrightnessOLEDElectroluminescencePhotochemistryMaterials scienceIntramolecular forceAbsorption (acoustics)Excited stateLuminous efficacyOptoelectronicsOpticsChemistryAtomic physicsNanotechnologyOrganic chemistryPhysicsLayer (electronics)Composite materialOrganic Light-Emitting Diodes ResearchPhotochemistry and Electron Transfer StudiesLuminescence and Fluorescent Materials