Poly[4,4-bis(2-ethylhexyl)cyclopenta[2,1-b;3,4-b′]dithiophene-2,6-diyl-alt-2,1,3- benzoselenadiazole-4,7-diyl], a New Low Band Gap Polymer in Polymer Solar Cells
A low band-gap polymer composed of thienylanthracene and DPP exhibits promising PCEs of 7.02% with PC71BM, and 4.23% with non-fullerene acceptor di-PBI, demonstrating the potential for universal electron donor polymer of polymer solar cells.