2,1,3-Benzothiadiazole, 4,7-bis[5-bromo-4-(2-ethylhexyl)-2-thienyl]-5,6-difluoro-, polymer with 1,1'-[4,8-bis(3-butylnonyl)benzo[1,2-b:4,5-b']dithiophene-2,6-diyl]bis[1,1,1-trimethylstannane] [1293389-32-8]