| 초록 |
White organic light-emitting diodes (WOLEDs) based on various emitters are applied as display backlights, in full color displays, and for solid-state lighting purposes. The most common types of WOLEDs can be composed of mixing either three colours (red, green, and blue) or two colours (blue and orange). Although orange emitters have been widely used for smaller vacuum-deposited two emitting-component WOLEDs, large area displays and lighting demand solution-processed WOLEDs. In this study, we have successfully developed a new strategy for the preparation of phosphorescent iridium complexes by using a 2-phenylpyridine based ligand. Three new orange iridium complexes were synthesized and characterized with orange emissions. Also we investigated the thermal stability, electrochemical properties, and photophysical behaviors of the three complexes. |
