Enhancement of Carrier Injection in OLEDs Utilizing Field Concentration to Carbon Nanotubes

Abstract

We propose a method to enhance carrier injection in OLEDs with carbon nanotubes, utilizing field concentration effect to the nanostructure. The simulation results show that hole injection can be improved drastically even when Schottky barrier as high as 0.7 eV exists. This suggests that low-voltage operation can be achieved in simpler OLED structure with carbon nanotube electrode.