Silafluorene metalloporphyrin-benzene organic semiconductor material and preparing method and uses thereof

A preparing method of silafluorenyl metalloporphyrin- benzene organic semiconductor material, comprising:

• step S1, in the presence of oxidant and a first catalyst, dissolving dipyrromethane having the structure formula of
• a first silafluorene derivative having the structure formula of
• and a second silafluorene derivative having the structure formula of
• in a first organic solvent, reacting at the temperature of 20° C. to 100° C. for 1 h to 24 h to obtain silafluorenyl porphyrin derivative having the structure formula of
• wherein, R1, R2, R3, R4 are H, alkyl group selected from C1-C32, phenyl, alkyl phenyl or alkoxyl phenyl further substituted with one or more arbitrary C1-C32 groups;
• step S2, adding the silafluorenyl porphyrin derivative obtained from step S1 and brominating agent into a second organic solvent, reacting at the temperature of 0° C. to 120° C. for 1 h to 72 h to obtain dibromo-silafluorenyl porphyrin derivative having the structure formula of
• step S3, dissolving the dibromo-silafluorenyl porphyrin derivative obtained from step S2 in a third organic solvent, then adding solution containing M metal ion, stirring at the temperature of 0° C. to 30° C. for 0.5 h to 24 h to obtain dibromo-silafluorenyl metalloporphyrin derivative having the structure formula of
• step S4, in the oxygen-free environment, in the presence of a second catalyst and a fourth organic solvent, according to the molar ratio of 1:2 to 2:1, carrying out Suzuki coupling reaction between dibromo-silafluorenyl metalloporphyrin derivative obtained from step S3 and 1,4-p-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan) benzene having the structure formula of
• at 50° C. to 120° C. for 12 h to 72 h to obtain said silafluorenyl metalloporphyrin- benzene organic semiconductor material having the structure formula of
• where n is an integer between 1 and 100.