Blue thermally activated delayed fluorescence material, synthesis method thereof, and use thereof

A synthesis method of a blue thermally activated delayed fluorescence material, comprising following steps:

• under an inert gas environment, performing a Buchwald-Hartwig coupling reaction between a raw material 1 and a raw material 2 under an effect of a palladium catalyst to obtain the blue thermally activated delayed fluorescence material;
• wherein, the raw material 1 has a following structural formula:
• the raw material 2 is selected from one of 9,9-diphenyl-9,10-dihydroacridine, phenoxazine, 3,6-dimethyl-9H-carbazole, 10H-spiro[acridine-9,9′-fluorene], 9,9-dimethyl-9,10-dihydroacridine, 9,10-dihydro-9,9-diphenylsila acridine, 3,7-dimethoxy-10H-phenoxazine, 10H-silaspiro[acridine-9,9′-fluorene], 7H-benzo[C]phenoxazine, 9-phenyl-7H-benzo[C]phenoxazine, 3, 6-di-tert-butyl-9H-carbazole, 1,3,6,8-tetramethyl-9H-carbazole, or 2-(tert-butyl)-5H-benzo[b]carbazole;
• and
• a molar ratio of the raw material 1 to the raw material 2 ranges from 1:2 to 1:6.