PROCESS OF PRODUCING AND APPLICATIONS OF A MULTI-COMPONENT BENZO[1,2-B:4,5-B] DIFLUOROTHIENOTHIOPHENE RANDOMLY SUBSTITUTED POLYMERS FOR ORGANIC SOLAR CELLS

摘要

A process of dissolving 3-fluoro-4,6-dihydrothieno[3,4-b]thiophene in a solvent to create a solution. An initiator is then added to the solution to produce an initiated solution followed by adding a fluorinated chemical to the initiated solution to produce 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene. 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene is then oxidized with an oxidant to produce 2,3-difluorothieno[3,4-b]thiophene. A brominating step then occurs to the 2,3-difluorothieno[3,4-b]thiophene to produce 4,6-dibromo-2,3-difluorothieno[2,3-c]thiophene. 4,6-dibromo-2,3-difluorothieno[2,3-c]thiophene is then debrominated and polymerized to;;The stoichiometric ratio of (f+g)≈h and f, g and h are not equal to 0. Additionally, in this embodiment R1, R2, R3 and R4 are independently selected from the group consisting of alkyl group, alkoxy group, aryl groups and combinations thereof and where the combination of R1, R2, R3 and R4 are not all identical.

主权项

1. A process comprising:
dissolving 3-fluoro-4,6-dihydrothieno[3,4-b]thiophene in a solvent to create a solution; adding an initiator to the solution to produce an initiated solution; adding a fluorinated chemical to the initiated solution to produce 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene; oxidizing 2,3-difluoro-4,6-dihydrothieno[3,4-b]thiophene with an oxidant to produce 2,3-difluorothieno[3,4-b]thiophene; brominating 2,3-difluorothieno[3,4-b]thiophene to produce 4,6-dibromo-2,3-difluorothieno[2,3-c]thiophene to produce polymerizing wherein the stoichiometric ratio of (f+g)≈h and f, g and h are not equal to 0; and wherein R1, R2, R3 and R4 are independently selected from the group consisting of alkyl group, alkoxy group, aryl groups and combinations thereof and where the combination of R1, R2, R3 and R4 are not all identical.