4.4L: Late‐News Paper: Novel OLEDs for Full Color Displays with Highest Power Efficiencies and Long Lifetime

Top emitting PIN-OLEDs that are perfectly suited to full color displays are reported here. For red, green, and blue diodes, power efficiencies at 1000 cd/m2 of 11 lm/W, 70 lm/W, and 8.4 lm/W were achieved. Lifetimes of phosphorescent bottom emitting PIN-OLEDs of 30,000 hours at a brightness of 500 cd/m2 indicate that charge carrier doping allows for very high lifetimes. Even higher stability could be achieved by replacing Cs with the new molecular n-dopant NDN-1. Furthermore, a white bottom emitting OLED (color coordinates (0.35, 0.37), CRI of 95) with a power efficiency of 16.3 lm/W at 1000 cd/m2 is shown.