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This study investigates the structure of films spin‐coated from blends of the semiconducting polymers poly(3‐hexylthiophene‐2,5‐diyl) (P3HT) and poly{2,6‐[4,4‐bis‐(2‐ethylhexyl)‐4H‐cyclopenta[2,1‐b;3,4‐b′]dithiophene]‐alt‐4,7(2,1,3‐benzothiadiazole)} (PCPDTBT). Such blends are of potential use in all‐polymer solar cells in which both the acceptor and the donor material generate excitons to contribute...
A conducting diblock copolymer of PS‐b‐P3HT was added to serve as a compatibilizer in a P3HT/PCBM blend, which improved the power‐conversion efficiency from 3.3% to 4.1% due to the enhanced crystallinity, morphology, interface interaction, and depth profile of PCBM.
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