Browsing by Author "Huang, Jian-Ji"
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Item type:Item, Lifetime improvement of organic light emitting diodes using LiF thin film and UV glue encapsulation(2008-07-01) ;Huang, Jian-Ji ;Su, Yan-Kuin ;Chang, Ming-Hua ;Hsieh, Tsung-EongHuang, Bohr-RanThis work demonstrates the use of lithium fluoride (LiF) as a passivation layer and newly developed UV glue for encapsulation on the LiF passivation layer to enhance the stability of organic light-emitting devices (OLEDs). Devices with double protective layers showed a 25-fold increase in operational lifetime compared to those without any packaging layers. LiF has a low melting point and insulating characteristics and it can be adapted as both a protective layer and preencapsulation film. The newly developed UV glue has a fast curing time of only 6 s and can be directly spin-coated onto the surface of the LiF passivationlayer. The LiF thin film plus spin-coated UV glue is a simple packaging method that reduces the fabrication costs of OLEDs.