New Iridium Complexes as Highly Efficient Orange–Red Emitters in Organic Light‐Emitting Diodes

Abstract

Two new iridium complexes with pyrazine derivatives as ligands (see Figure) were synthesized. The electroluminescent devices based on these metal complexes emit orange–red light at ∼ 610 nm with exceedingly high brightness and external quantum, current, and power efficiencies.