Cyanophenyl spiro[acridine-9,9′-fluorene]s as simple structured hybridized local and charge-transfer-based ultra-deep blue emitters for highly efficient non-doped electroluminescent devices (CIE<i>y</i> ≤ 0.05)
Taweesak Sudyoadsuk, Sujinda Petdee, Chokchai Kaiyasuan, Chaiyon Chaiwai, Praweena Wongkaew, Supawadee Namuangruk, Pongsakorn Chasing, Vinich Promarak
Abstract
Cyanophenyl substituted spiro[acridine-9,9′-fluorene]s featured with HLCT excited states yielded highly efficient non-doped OLEDs with emissions in high-definition television standard blue color, CIE<italic>y</italic> ≤ 0.05, and CE<sub>max</sub>/EQE<sub>max</sub> of 6.54 cd A<sup>−1</sup>/4.63%.
Topics & Concepts
ElectroluminescenceFluoreneAcridineMaterials scienceDopingOLEDExcited stateDeep blueOptoelectronicsCharge (physics)FluorescencePhotochemistryOpticsNanotechnologyPhysicsAtomic physicsPolymerChemistryOrganic chemistryLayer (electronics)Quantum mechanicsComposite materialOrganic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsMolecular Junctions and Nanostructures