Mixed-ligand Al complex—a new approach for more high efficient OLEDs

The mixed-ligand Aluminum bis(8-hydroxyquinoline) acetylacetonate (Alq2Acac) complex was presented and its performance as electroluminescent and electron transporting layer for OLED was studied. The photophysical properties of the novel complex were investigated and compared with the properties of the parent Alq3. Highly efficient OLED based on the mixed-ligand Al complex was developed with two times higher luminescence and efficiency compared to the identical OLED based on the conventional Alq3 The better performance of the devices make the novel Al complex a very promising material for OLEDs.