Green multi-resonance thermally activated delayed fluorescence emitters containing phenoxazine units with highly efficient electroluminescence
Jiajun Hu, Xu‐Feng Luo, Yi‐Pin Zhang, Meng‐Xi Mao, Hua‐Xiu Ni, Xiao Liang, You‐Xuan Zheng
Abstract
Two phenoxazine fused MR-TADF materials based on a B/N framework show high PLQYs and small FWHMs in toluene solutions, while their OLEDs exhibit EQEs of up to 21.3% with small efficiency roll-offs and narrow EL emissions.
Topics & Concepts
PhenoxazineOLEDMaterials scienceElectroluminescenceFluorescenceOptoelectronicsResonance (particle physics)PhotoluminescenceTolueneNanotechnologyOpticsOrganic chemistryChemistryPhysicsPharmacologyPhenothiazineLayer (electronics)Particle physicsMedicineOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsOrganic Electronics and Photovoltaics