| abstract |
The invention provides an aromatic amine compound and an organic electroluminescence device thereof, and relates to the technical field of organic optoelectronic materials. This kind of compound has high hole mobility, glass transition temperature and refractive index, good hole injection and transport ability, good stability and film-forming property, can be used as hole transport layer and cover layer at the same time, not only can It can improve the injection and transmission efficiency of holes, and can also overcome the substrate mode loss, surface plasmon loss and waveguide effect, thereby improving the transmittance of the semi-transmissive electrode and increasing the external quantum efficiency. The transmittance in the visible light range reaches more than 80%. . The compound acts as a hole transport layer and a cover layer at the same time, which can improve the luminous efficiency and brightness of the device, reduce the driving voltage of the device, and prolong the service life of the device. |