Fabrication of organic light-emitting devices by oblique angle deposition technique

OLEDs based on small organic molecules are generally fabricated by thermal evaporation techniques at normal angle of incidence. We report the fabrication of OLEDs using oblique angle deposition technique. Current density and luminance versus voltage characteristics were studied and it was found that OLEDs fabricated with oblique angle deposition technique showed improved light output intensity. This improvement in the performance of OLEDs fabricated by oblique angle deposition technique is discussed.