P‐171: Investigation of the Improvement in Short‐term Stability by Post Annealing of Fluorescent Organic Light‐Emitting Diodes

We demonstrate that the short‐term stability of organic light emitting diodes is improved by annealing the device after fabrication. Under constant current density of 50 mA/cm 2 , the relative EL intensity of annealed devices remain 93% of the initial luminance while that of the unannealed devices reach 90% of the initial luminance.