2results about How to "Avoid shining" patented technology

The application provides a triarylamine compound and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials.The triarylamine compound has good thermal stability, high hole mobility and a suitable HOMO energy level, and is used as a hole transport material in the organic electroluminescent device, which can effectively reduce the hole transport resistance, improve the injection and transport efficiency of holes in the device, make the efficient recombination of electrons and holes in the light-emitting layer, effectively reduce the driving voltage of the device, improve the light-emitting efficiency of the device, reduce the movement of excitons to the outside of the light-emitting layer, avoid interface light emission, reduce the loss of the device, and prolong the service life of the device.The triarylamine compound can be applied to the fields of display, illumination and organic solar cells.

This invention relates to the field of organic optoelectronic materials technology, specifically to a fluorene-containing aromatic amine compound and its organic electroluminescent device. The fluorene-containing aromatic amine compound provided by this invention possesses an appropriate hole mobility, effectively improving the charge transport efficiency of the device, thereby improving the driving voltage and luminous efficiency. It also possesses appropriate HOMO and T1 values, enabling good energy level matching with adjacent organic functional layers. When adjacent to the luminescent layer, it can also block exciton migration to the interface between the luminescent layer and the exciton layer, preventing interfacial luminescence and avoiding device aging caused by heat generated by interfacial luminescence, further improving the device's driving voltage, luminous efficiency, and lifespan. Furthermore, the fluorene-containing aromatic amine compound provided by this invention also exhibits excellent thermal and chemical stability, allowing it to be used over a wide temperature range and in environments containing water, oxygen, and other corrosive gases, thereby delaying device aging and improving device lifespan.