| 摘要 |
A novel Pt tetradentate complexes having Pt-O bond is disclosed. The complexes are useful as emitters in phosphorescent OLEDs. According to another embodiment, provided is a device including one or more organic light emitting devices. One or more among the organic light emitting devices comprises an anode, a cathode, and an organic layer arranged between the anode and the cathode, wherein the organic layer includes a compound having a Pt tetradentate structure, having the chemical formula I defined in the present invention. |
