Synthesis of Thienothiadiazole–Benzothiadiazole Alternating Copolymers and Their Application to Bulk Heterojunction Solar Cells
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- Tomokazu Umeyama
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
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- Yusuke Watanabe
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
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- Tetsushi Miyata
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
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- Hiroshi Imahori
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
抄録
<jats:title>Abstract</jats:title> <jats:p>Novel conjugated polymers incorporating thieno[3,4-c][1,2,5]thiadiazole (TTD) and 2,1,3-benzothiadiazole (BT) were synthesized. The TTD–BT copolymers displayed broad absorption bands in visible–near-infrared regions with optical band gaps of 1.1–1.2 eV. The HOMO energy levels were lower than those of TTD–oligothiophene alternating copolymers due to the electron-deficient nature of the BT unit. The photovoltaic device consisting of the polymer and a fullerene derivative ([70]PCBM) showed power conversion efficiencies of 0.01–0.08% under simulated AM 1.5G irradiation of 100 mW cm−2.</jats:p>
収録刊行物
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- Chemistry Letters
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Chemistry Letters 43 (12), 1876-1878, 2014-09-30
Oxford University Press (OUP)
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詳細情報 詳細情報について
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- CRID
- 1360002219105601280
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- NII論文ID
- 130004693834
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- ISSN
- 13480715
- 03667022
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