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http://dx.doi.org/10.4313/JKEM.2013.26.9.682

Emission Characteristics of Polymer Blue Organic Light Emitting Devices on the Plastic Substrates  

Jung, Jae-Hoon (Department of Advanced Materials Engineering, Soonchunhyang University)
Moon, Dae-Gyu (Department of Advanced Materials Engineering, Soonchunhyang University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.26, no.9, 2013 , pp. 682-685 More about this Journal
Abstract
We have fabricated blue phosphorescent organic light-emitting devices (OLEDs) on a plastic substrate. The solution coated poly (9-vinylcarbazole) (PVK) host doped with Bis (3,5-difluoro-2-(2-pyridyl)phenyl_(2-carboxypyridyl)irdium(III) (FIrPic) guest molecules was used as an hole transporting emission layer. The device structure was ITO/PVK:FIrpic (50 nm, xwt%)/TAZ 50 nm)/LiF (0.5 nm)/Al (100 nm). The concentration of FIrpic molecule was varied from 1 wt% to 10 wt%. The OLED on plastic substrate exhibited maximum current efficiency of 18 cd/A with 5 wt% FIrpic molecules were doped into the PVK layer.
Keywords
OLED; Flexible; Plastic substrate; Polymer;
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