| 초록 |
The extensively used bipolar host CzPAF-OXD as for red phosphorescent organic light emitting diodes (OLEDs) were fabricated by solution process. The OLEDs that we prepared utilizes phosphorescent dopant materials, bis-(1-phenylisoquinoline)(acetylacetonate) iridium(Ⅲ) (Ir(piq)2(acac)), exhibit a Commission International de l’Eclairage (CIE) coordinates of (0.68, 0.31). We have fabricated solution processed red OLEDs with a configuration of ITO/PEDOT:PSS/CzPAF-OXD:mCP:Ir(piq)2(acac)/TmPyPB/LiF/Al. The optimized interlayer OLEDs showed excellent performance such as maximum luminance efficiency of 4.16 cd/A, a maximum power efficiency of 2.18 lm/W and a maximum external quantum efficiency of 6.96 % and the driving voltage of 4.1 V. |
