| 摘要 |
The present invention relates to optoelectronic materials field, and it discloses a benzodithiophene organic semiconductive material with the following structural formula (P): wherein, x+y=2; 1@x<2, 0<y@1; 1<n@100; R1, R2 are C1-C20alkyl; R3 is selected from C1-C20alkyl; R4, R5 are hydrogen, phenyl, C1-C20 alkyl or phenyl substituted by C1-C20 alkoxy. The present invention is also provided with preparation method and use of the benzodithiophene organic semiconductive material. The benzodithiophene containing bisphenyl siloles unit has good dissolution property, high carrier mobility, strong absorbance, wide optical absorption range, and improved utilization of sunlight, and its preparation process is simple, with high yield, and easy to operate and control.
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