HIGHLY EFFICIENT PURE-BLUE ORGANIC LIGHT-EMITTING DIODES BASED ON RATIONALLY DESIGNED HETEROCYCLIC PHENOPHOSPHAZININE-CONTAINING EMITTERS

Abstract Multi-resonance thermally activated delayed fluorophores have been actively studied for high-resolution photonic applications due to their exceptional color purity.However, these compounds encounter challenges associated with the inefficient spin-flip process, compromising device performance.Herein, we report two pure-blue emitters based o