, Volume 53, Issue 6, pp 958-960
Date: 26 Mar 2008

New hybrid encapsulation for flexible organic light-emitting devices on plastic substrates

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Abstract

The hybrid encapsulation for flexible organic light-emitting devices on plastic substrate was investigated. The hybrid encapsulation consisted of four periods of Alq3/LiF layers as the pre-encapsulation layer and a flexible aluminum foil coated with getter as the encapsulation cap. We measured the device lifetime at a continuous constant current of 20 mA/cm2, which corresponded to an initial luminance of 2000 cd/m2. The half-luminance decay time of the encapsulated device was about 458 h. More over, the hybrid encapsulation is ultrathin and flexible, ensuring device bendability.

Supported by the National Basic Research Program of China (Grant No. 2002CB613405)