| abstract |
The invention provides a nitrogen-containing heterocyclic derivative and an organic light-emitting device thereof, and relates to the technical field of organic photoelectric materials. On the one hand, acridine is a macrocyclic conjugated system with a rigid planar structure, and its rigid molecular skeleton is conducive to improving the photothermal stability and fluorescence quantum efficiency of the material. On the other hand, the acridine ring structure and the biphenyl structure are linked by a nitrogen atom, forming a p-π large conjugated state on the whole, the ability of the large conjugated ring to accommodate electrons is enhanced, and the nitrogen atom has a more Strong electron-donating ability, easier to oxidize to form holes and show positive charge, with high hole mobility. An organic light-emitting device prepared by using this structure as a hole-transporting material exhibits the advantages of high luminous efficiency and low driving voltage. |