| abstract |
The present invention relates to the technical field of organic electroluminescent materials, in particular, to a nitrogen-containing phenanthrene compound, a preparation method thereof, a functional material and an organic electroluminescent device. The nitrogen-containing phenanthrene compound is the compound represented by the following structural formula or its isomer, It can be used as a material for forming a light-emitting auxiliary layer or a hole-transporting layer, thereby improving the glass transition temperature, stability, lifespan and efficiency of the organic optoelectronic light-emitting device, and reducing the driving voltage. |