| abstract |
The invention relates to a diindolotricarbazolyl multi-arm structure conjugated molecular material and its preparation method and application. The material uses diindolotricarbazole as the core and diphenylamine group as the end-capping unit , with fluorenyl groups of different chain lengths as bridging units, the material has a general structural formula as shown in Formula I below: The material of the invention is simple to prepare, the cost of the intermediate is low, the reaction process is easy to control, the product is easy to separate, the yield is high, and the purity is high. This type of material shows good thermal stability and film-forming stability in organic electroluminescent devices. , excellent hole transport ability and high luminous intensity, and has potential application value in organic electroluminescence. |