| abstract |
The invention discloses a thermally induced delayed fluorescent material, the general structural formula of which is shown in Formula I: The organic electroluminescent device prepared by using this material can significantly improve the power efficiency and external quantum efficiency of the device, prolong the life of the blue light device, and the method of material synthesis and purification is simple and suitable for large-scale production. Ideal for device light emitting materials. Also within the scope of protection is the use of the organic electroluminescent diode material as a carrier transport material or as a light emitting material alone or as a host material in a light emitting layer. |