Stable, highly efficient and temperature resistant organic light-emitting devices

Highly efficient small molecule-based organic light-emitting devices (OLED) that use electrically doped charge injection layers are presented. These structures exhibit low power consumption, long lifetime and high stability when operated at ambient temperature. It is also shown that their performances do not change significantly even when devices are stored at 90 degrees C for 80 days or 110 degrees C for 24 h. Such OLED structures thus fulfill the most severe requirements for mobile display applications.