| abstract |
The invention provides a benzopyrene derivative and its preparation method and application, belonging to the technical field of organic electroluminescent materials. By optimizing the molecular structure design, the benzopyrene derivatives obtained in the present invention have higher electron transport efficiency and can be used to prepare organic electroluminescent devices, especially as electron transport materials in organic electroluminescent devices, which can effectively improve The luminous efficiency of the OLED device, the maximum brightness of the device reaches 1000cd/m 2 , which is superior to the existing common OLED devices. The invention also provides a preparation method of a benzopyrene derivative, which is simple and has readily available raw materials. |