Circularly polarized organic light-emitting diodes with chiral asymmetric [Ir(C 1 ^N 1 )(C 2 ^N 2 )(L^X)]-tris-heteroleptic iridium( iii ) complexes

Two chiral trinary heteroleptic Ir( iii ) isomers were synthesized and separated with high PLQYs of 97%, an EQE max of 22.3% and a | g PL | of 1.92 × 10 −3 , respectively.