• Xiuju Zhang, Changyun Jiang, Yueqi Mo, Yunhua Xu, Huahong Shi , Yong Cao. High-efficiency blue-emitting electrophosphorescent device in polymer host. Applied Physics letters. 2006,88:051116
  • 发布时间:2014-04-03   阅读:91
  • Abstract:Highly efficient blue polymer phosphorescent organic light-emitting diode (PPHOLED)-containing iridium(III) bis (2,4-difluorophenyl-2-pyridine) (2-(4H-1, 2, 4-triazol-3-yl)pyridine) [Ir(PPF)2(PZ)] complex embedded into wide-gap poly (9,9′-alkyl-3, 6-silafluorene) (PSiFC6C6) has been fabricated. Despite the significant quenching of photophosphorescence emission of the iridium complexes by a PSiFC6C6 host polymer, organic light-emitting diodes containing Ir(PPF)2(PZ) doped into the polymer host PSiFC6C6 emit high-efficiency blue light peaked at 462 nm. The maximal external quantum and luminance efficiencies were, respectively, 4.8% photons/electrons and 7.2 cd/A at 644 cd/m2 and with Commission Internationale de l’Eclairage coordinates of (0.15,0.26)