Enhancing TADF Emission and Mitigating Efficiency Roll-Off in OLEDs via Reasonable Tetrahydroquinoxaline-Integrated Organo-Boron Based Emitters

Multiple-resonance thermally activated delayed fluorescence (MR-TADF) emitters are promising for efficient narrowband organic light-emitting diodes (OLEDs), but device efficiency roll-off remains a significant challenge. This study introduces three emitters, DQBN,...