| Popis: |
Three iridium(Ⅲ) containing imidazo[1,2-a]pyridine complexes(PIPy) 2 Ir(acac),(4'-MPIPy) 2 Ir(acac),(BIPy) 2 Ir(acac) were synthesized based on reaction of iridium trichloride hydrate,2-Biphenyl-4-yl-imidazo[1,2-a]pyridine with acetylacetone.Doping multiplayer OLEDs were respectively fabricated based on(BIPy) 2 Ir(acac) with electron transporting ability.The doping device showed strong saturated green electrophosphorescent emission,the emission peak wavelength 516 nm and brightness of 18 000 cd / m 2,current efficiency of 26.7 cd/A with Commission International de L'Eclairage(CIE) coordinates of(0.32,0.60).This is the first report on new green phosphorescent material based on Ir(Ⅲ) complex. |
