Tetrathienoanthracene-based copolymers for efficient solar cells |
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| Authors: | He Feng Wang Wei Chen Wei Xu Tao Darling Seth B Strzalka Joseph Liu Yun Yu Luping |
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| Affiliation: | Department of Chemistry and The James Franck Institute, The University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States. |
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| Abstract: | A series of semiconducting copolymers (PTAT-x) containing extended π-conjugated tetrathienoanthracene units have been synthesized. It was shown that the extended conjugation system enhanced the π-π stacking in the polymer/PC(61)BM blend films and facilitated the charge transport in heterojunction solar cell devices. After structural fine-tuning, the polymer with bulky 2-butyloctyl side chains (PTAT-3) exhibited a PCE of 5.6% when it was blended with PC(61)BM. |
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