Benzodithiophene-based copolymer containing thieno 3,4-b thiophene unit, production method, and method of use thereof

摘要

The present invention relates to a benzodithiophene copolymer containing a thieno [3,4-b] thiophene unit, a method for producing the same, and a method for using the same. The polymer has a chemical structural formula (formula 1), R1 and R2 are each selected from H or C1 to C16 alkyl groups, R3 and R4 are H, C1 to C16 alkyl groups, C1 to C1; Each is selected from a C16 alkoxy group and a thiophene group substituted by a C1-C16 alkyl group, R5 is selected from a C1-C16 alkyl group, and n is a natural number of 7-80. Polymer solar cells, polymer organic electroluminescent devices, polymer organic field effect transistors, polymer organic optical memories, polymer organics using benzodithiophene copolymers containing thieno [3,4-b] thiophene units Applications in nonlinear materials and polymer organic lasers are also provided.