Novel yellow phosphorescent iridium complexes with dibenzothiophene-S,S-dioxide-based cyclometalated ligand for white polymer light-emitting diodes

Two novel yellow phosphorescent iridium complexes with dibenzothiophene-S,S-dioxide-based cyclometalated ligand are obtained for the first time. Both highly efficient yellow and white PLEDs are fabricated with a simple single-emission-layer configuration.200