abstract |
The invention discloses a phosphorescent compound, and the general formula of its molecular structure is shown in the specification. After the phosphorescent compound provided by the invention is used in an organic electroluminescent device, the luminous efficiency of the device is improved and the service life is long. The preparation method of the phosphorescent compound provided by the invention has the advantages of easy-to-obtain raw materials, simple synthesis process and high product yield. The phosphorescent compound of the present invention can be applied to an OLED light-emitting device, and the voltage, efficiency and lifetime are improved compared with known OLED materials. |