| abstract |
The invention discloses a 1,3-dicarbazole benzene phosphorescent host material, a synthesis method and an application thereof, and belongs to the field of photoelectric material application technology. The present invention obtains a blue phosphorescence host material with N,N'-biscarbazolyl-1,3-benzene as a fixed structural unit through a simple synthesis route, has a relatively high glass transition temperature, and has good hole and Electron transport ability, good film formation and stable properties, device efficiency greater than 40Cd/A and low efficiency roll-off under high brightness, is an ideal high-efficiency blue phosphorescent bipolar host material. The invention solves the problems of low glass transition temperature, low stability of the material itself, and high-efficiency roll-off under high luminance, which hinder its widespread use. |