Synthesis and photovoltaic properties of thieno[3,4‐b]pyrazine or dithieno[3′,2′:3,4;2″,3″:5,6]benzo[1,2‐d]imidazole‐containing conjugated polymers |
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| Authors: | Mukhamed L. Keshtov Dmitri Yu. Godovsky Alexei R. Khokhlov Tetsunari Mizobe Hiroyuki Fujita Eisuke Goto Junya Hiyoshi Saki Nakamura Susumu Kawauchi Tomoya Higashihara Tsuyoshi Michinobu |
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| Affiliation: | 1. A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, Russia;2. Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia;3. Graduate School of Science and Engineering, Tokyo Institute of Technology, Meguro‐ku, Tokyo, Japan;4. Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata, Japan |
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| Abstract: | Novel conjugated polymers composed of benzo[1,2‐b:4,5‐b′]dithiophene and thieno[3,4‐b]pyrazine or dithieno[3′,2′:3,4;2″,3″:5,6]benzo[1,2‐d]imidazole units are synthesized by Stille polycondensation. The resulting polymers display a longer wavelength absorption and well‐defined redox activities. The effective intramolecular charge‐transfer and energy levels of all polymers are elucidated by computational calculations. Bulk‐heterojunction solar cells based on these polymers as p‐type semiconductors and [6,6]‐phenyl‐C61‐butyric acid methyl ester (PC61BM) as an n‐type semiconductor are fabricated, and their photovoltaic performances are for the first time evaluated. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015 , 53, 1067–1075 |
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| Keywords: | charge transport computer modeling conducting polymers conjugated polymers electrochemistry photochemistry |
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