Synthesis and photovoltaic properties of low band gap copolymers containing (bithiophenevinyl)-(2-pyran-4-ylidenemalononitrile) (TVM) moieties
In: Polymer Journal, Jg. 45 (2013-03-27), S. 1072-1080
Online
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Zugriff:
Three novel conjugated copolymers containing coplanar bithiophenevinyl-(2-pyran-4-ylidenemalononitrile) unit linked with different electron-donating moieties by a double bond were synthesized by Heck polycondensation reactions. By introducing a double bond between the donor and acceptor unit within the backbone of polymers instead of a single bond, the conjugated length was enhanced, and consequently broader absorption spectral range and reduced band gap. Hence, the polymer can absorb more light to get higher Jsc and power-conversion efficiency.
| Titel: |
Synthesis and photovoltaic properties of low band gap copolymers containing (bithiophenevinyl)-(2-pyran-4-ylidenemalononitrile) (TVM) moieties
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| Autor/in / Beteiligte Person: | Li, Hui ; Wen, Shanpeng ; Yan, Long ; Chen, Jinlong ; Tian, Wenjing ; Wang, Lijuan ; Yao, Shiyu ; Li, Pengfei ; Zhang, Jibo ; Cheng, Weidong |
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| Zeitschrift: | Polymer Journal, Jg. 45 (2013-03-27), S. 1072-1080 |
| Veröffentlichung: | Springer Science and Business Media LLC, 2013 |
| Medientyp: | unknown |
| ISSN: | 1349-0540 (print) ; 0032-3896 (print) |
| DOI: | 10.1038/pj.2013.36 |
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