| abstract |
The present invention provides an organic compound, a preparation method and application thereof, wherein the organic compound has the structure shown in the following formula I or formula II. The present invention can improve the hole mobility of the compound and change the spatial structure by connecting the side chain with a specific structure at a specific position of dibenzofuran or dibenzothiophene, and prolonging the molecular conjugation, so that the device is more suitable for the device. When the compound provided by the present invention is used as a luminescent auxiliary material for an organic electroluminescent device, the lifespan and luminous efficiency of the organic electroluminescent device can be effectively improved, and the driving voltage of the device can be reduced at the same time. |