Patent ID: 8269099
Filing Date: 2012-09-18
Classification: B82Y,C08G,H01L,Y02E

Abstract:
1. An electron donating organic material for photovoltaic devices which comprises a conjugated polymer represented by formula (1): wherein R 1 to R 10 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an alkoxy group and an aryl group; R 11 and R 12 may be the same or different from each other and are each selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group and halogen; and W and Y may be the same or different from each other and are each selected from the group consisting of a single bond, an arylene group, a heteroarylene group, an ethenylene group, and an ethynylene group; X and Z may be the same or different from each other, wherein each may be selected from the group consisting of an arylene group, a heteroarylene group, and an ethenylene group and at least one of them is a heteroarylene group when n=1, wherein each may be selected from the group consisting of a single bond, an arylene group, a heteroarylene group, an ethenylene group, and an ethynylene group when n>1; m is 0 or 1; n is within a range of 1 to 1000.