Enhanced stability of organic light-emitting devices fabricated under ultra-high vacuum condition

Enhanced stability of organic light-emitting devices (OLEDs) was observed in the device fabricated under ultra-high vacuum condition. Studies on the intrinsic degradation of the OLEDs based on tris (8-hydroxyquinoline) aluminium (Alq3) reveal that the degradation of the OLEDs is associated with the electrochemical reaction of Alq3 with water.