... derivatives for solar cells. Journal of the American Chemical Society, Vol.130, No.2, (January 2008), pp. 732- 742 , ISSN 1520-5126 Solar Cells – New Aspects and Solutions 44 6 with P63- 64: PC71BM ... Crystalline low band-gap alternating indolocarbazole and benzothiadiazole-cored oligothiophene Solar Cells – New Aspects and Solutions 46 0 NSNSSP(C 4 H9)3PtCl(C 4 H9)3PClCuI, ... of low-bandgap polymers with deep LUMO levels. Angew. Chem. Int. Ed., Vol. 49 , No. 43 , (October 2010), pp. (7992–7995), ISSN: 1521-3773 Solar Cells – New Aspects and Solutions 47 4 Zhou,...