| abstract |
The invention provides a derivative containing a phenanthroimidazole structure and an organic light-emitting device thereof, belonging to the technical field of organic photoelectric materials. The derivative of the phenanthroimidazole structure has a structure shown in formula (I), the phenanthroimidazole derivative belongs to a typical electron-deficient system, has good electron accepting ability, and is a coplanar condensed ring aromatic hydrocarbon system on the spatial structure, and has Appropriate HOMO and LUMO energy levels, therefore have good electron transfer ability, is a class of excellent electron transport material; The molecular weight of the material of the present invention is between 500 and 900, and it has higher glass transition temperature, thereby It has good thermal stability and good vacuum evaporation film formation. The organic light-emitting device made of the derivative shows the advantages of high efficiency and long life, and is superior to the existing common OLED devices. |