| abstract |
Disclosed in the present invention are a bis(dimethylfluorene)-based compound, a preparation method therefor and the use thereof, which belong to the technical field of semiconductors. The structure of the compound provided in the present invention is represented by general formula (I). Further disclosed in the present invention is use of said compound. The compound of the present invention contains a bis(dimethylfluorene) structure, has high glass transition temperature and molecular thermal stability, has suitable HOMO and LUMO energy levels, and has high Eg. By optimizing the structure of devices, the photoelectric performance of OLED devices and the lifetime of the OLED devices can be largely improved. |