Patent ID: 11926772
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 11:
12. A method of manufacturing the high-performance sky blue thermally activated delayed fluorescent material according to claim 1, comprising:
mixing material 1, material 2, palladium acetate and tri-tert-butylphosphine tetrafluoroborate to form a solution and adding NaOt-Bu thereto, adding toluene to the solution under argon atmosphere, and subjecting the solution to a reaction to obtain a crude product of the high-performance sky-blue thermally activated delayed fluorescent material represented by the formula I; cooling the crude product of the high-performance sky blue thermally activated delayed fluorescent material obtained to room temperature, pouring the crude product into ice water, and extracting the crude product with dichloromethane to obtain extracts, combining the extracts with an organic phase solvent, forming silica gel immediately, and performing column chromatography separation and purification process to obtain a high-performance sky blue thermally activated delayed fluorescent material product; wherein the material 1 is 7-(4-bromophenyl)-3,4-difluorothiophene-1,2-dinitrile; and the material 2 is phenoxazine, 1,8,9,9′-tetramethylacridine or 1,3,6,8,9,9′-hexamethylacridine; a molar ratio of the material 1 to the material 2 is between 1:1 and 1:3; a molar ratio of the palladium acetate to the tri-tert-butylphosphine tetrafluoroborate, and the NaOt-Bu is between 1:3:30 and 1:6:60; a molar volume ratio of the material 1 to the toluene is between 1:5 and 1:20; a reaction temperature of the reaction is between 80° C. and 160° C.; a reaction period of the reaction is between 12 and 48 hours; and a number of times of the extracting with the dichloromethane are between 2 and 4.