Photodegradation of the organic/metal cathode interface in organic light-emitting devices

Qi Wang, Yichun Luo, and Hany Aziz We study the photostability of organic light-emitting devices (OLEDs). Irradiating OLEDs by external illumination is found to result in a gradual increase in driving voltage and decrease in electroluminescence (EL) efficiency. This photoinduced degradation in device performance is found to be caused ... [Appl. Phys. Lett. 97, 063309 (2010)] published Fri Aug 13, 2010.