| 초록 |
Solution-processed phosphorescence organic light-emitting diodes (PHOLEDs) are an increasingly attractive option as compared with vacuum-processed PHOLEDs due to their lower costs and large areas, and flexible production. Currently, the majority of reported solution-processed PHOLEDs are produced using red and green triplet emitters. It shows that it’s difficult to produce efficient solution-processed deep-blue PHOLEDs that meet high EQE and CIEy color coordinates ≤ 0.15 requirements. The deep-blue PHOLEDs exhibited remarkable maximum EQE (EQEmax) of 25.3% and excellent CIE (x, y) color of (0.16, 0.10) at a mer-Ir(ptbbp)3 doping ratio of 50 wt%. This is the first report of deep-blue solution-processed PHOLEDs containing carbene-based Ir(III) complexes with extremely high EQE values that meet the CIEy coordinate requirement (0.05) of the European Broadcasting Union. |
