| 초록 |
We have been synthesized the various colors of phosphorescent Ir(III) complexes for phosphorescent organic light-emitting diodes (PhOLEDs) applications. A new series of highly efficient deep-blue phosphorescent Ir(III) complexes, (F2CH3ppy)2Ir(pic-N-oxide) and (F2CF3CH3ppy)2Ir(pic-N-oxide), based on phenylpyridine (ppy) as the main ligand and picolinic acid N-oxide (pic-N-oxide) as the ancillary ligand, were synthesized for applications in PhOLEDs. High performance PhOLEDs showed bright deep blue emissions with the CIE coordinates of (0.147, 0.210) and high external quantum (23.3%) and current (36.1 cd/A) efficiencies. |
