Horizontally oriented pyrido2,3- b pyrazine-based thermally activated delayed fluorescence emitters exhibiting bipolar charge transport for efficient organic light-emitting diodes

Key Points

• This research aims to explore pyrido[2,3-b]pyrazine emitters for their thermal stability and charge transport properties in OLED applications.
• Investigation of molecular orientation and thermal stability in pyrido[2,3-b]pyrazine emitters
• Incorporation of carbazole and phenothiazine donors to enhance emitter performance
• Evaluation of external quantum efficiencies in organic light-emitting diodes
• Achieved external quantum efficiencies of up to 21.3% with optimized emitters
• Demonstrated efficient charge transport properties in the designed OLEDs
• Noted improved thermal stability with specific donor configurations