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 equi-jec 7 color purity.However, these compounds encounter challenges associated with the inefficient spin-flip process, compromising device performance.Herein, we report two pure-blue emitt