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Issue 12, 2012
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Introduction of a conjugated side chain as an effective approach to improving donor–acceptor photovoltaic polymers

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Abstract

We report a simple, effective approach to modifying two kinds of D–A type polymers; copolymerization with thiophene containing tris(thienylenevinylene) (TTV) conjugated side chain. The resulting copolymers, TTV1 and TTV2, showed significant improvement (25% and 43%) of power conversion efficiency in comparison to the original polymers. The short-circuit current of TTV2 reached 22.6 mA cm−2 that is the highest record for organic photovoltaic devices to date. This design strategy opens up a new possibility to modify the existing D–A type photovoltaic polymers for better performance.

Graphical abstract: Introduction of a conjugated side chain as an effective approach to improving donor–acceptor photovoltaic polymers

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Publication details

The article was received on 06 Sep 2012, accepted on 15 Oct 2012 and first published on 29 Oct 2012


Article type: Communication
DOI: 10.1039/C2EE23383E
Citation: Energy Environ. Sci., 2012,5, 9756-9759
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    Introduction of a conjugated side chain as an effective approach to improving donor–acceptor photovoltaic polymers

    E. Zhou, J. Cong, K. Hashimoto and K. Tajima, Energy Environ. Sci., 2012, 5, 9756
    DOI: 10.1039/C2EE23383E

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