A promising phosphorescent heteroleptic iridium complex with carbazole-functionalized substituent: Synthesis, photophysical and electroluminescent performances

High efficiency and stable-yellow phosphorescence from OLEDs with a novel fluorinated heteroleptic iridium complex

“…Our group demonstrated efficient red phosphorescent OLEDs based on Ir-bt type complex by elongating conjugate system with the alkenyl group [14]. Moreover, some functionalized groups such as carbazole and arylamine were introduced into bt ligand to successfully increase phosphorescent quantum yield of corresponding Ir(III) complexes and further improve device's efficiency [15][16][17][18][19]. In comparison, a lot of fluorinated compounds used in OLEDs display prominent properties [20][21][22][23][24][25].…”