Asymmetric multiple resonance thermally activated delayed fluorescence emitters for sky-blue and pure blue electroluminescence
Hua‐Xiu Ni, Xu‐Feng Luo, Yuan Li, Jiajun Hu, Wenwei Zhang, You‐Xuan Zheng
Abstract
Two asymmetric MR-TADF materials, Cz-SCz and BCz-SCz, exhibit sky-blue and pure blue emission with small FWHMs of 28 and 24 nm, respectively. OLEDs display EQE max values of up to 20.5%, and that with BCz-SCz achieves pure blue emission with a CIE y coordinate below 0.15.
Topics & Concepts
ElectroluminescenceMaterials scienceFluorescenceSkyOptoelectronicsBlueshiftBlue lightPhotochemistryResonance (particle physics)OpticsNanotechnologyPhotoluminescenceAtomic physicsChemistryMeteorologyLayer (electronics)PhysicsOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsThin-Film Transistor Technologies