| abstract |
The invention provides an aromatic amine derivative, a preparation method and application thereof, and relates to the technical field of organic photoelectric materials. By introducing the fluorenylene, indenofluorenylene or spirobifluorenyl structure, the degree of conjugation of the system is increased, the aromatic amine derivatives obtained in the present invention have high thermal stability, and can be used to prepare organic electroluminescence The device, especially as a hole-transporting material in an organic electroluminescent device, exhibits the advantages of high luminous efficiency and long life, which is superior to the existing commonly used OLED devices. The invention also provides a preparation method of aromatic amine derivatives, the preparation method is simple and the raw materials are readily available. |