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Issue 30, 2014
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Design and control of organic semiconductors and their nanostructures for polymer–fullerene-based photovoltaic devices

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Abstract

The polymer solar cell (PSC) technology has continued to be developed, and the power conversion efficiency (PCE) has now exceeded 10%. The rapid improvement of PCEs in the last decade has mainly resulted from versatile synthetic efforts for conjugated polymers as electron-donors and fullerene derivatives as electron-acceptors. This Feature Article highlights recent exploration of unique, attractive building blocks, i.e., quinoidal units, phospholes, porphyrins, and fluorinated aromatic rings, which can be incorporated into low bandgap conjugated polymers. As candidates for the next-generation acceptor materials that replace the benchmark acceptor, [6,6]-phenyl-C61-butyric acid methyl ester ([60]PCBM), fullerene bisadduct regioisomers are also overviewed. Furthermore, we summarized recent attempts for the construction of one-dimensionally confined, organic donor–acceptor heterojunction nanorods and their applications to photovoltaic and optoelectronic devices. The topics in this article are not intended to cover an exhaustive list of PSC research studies, but involve the fundamental aspect to stimulate further studies for getting new insights into the structure–property relationship in PSC devices.

Graphical abstract: Design and control of organic semiconductors and their nanostructures for polymer–fullerene-based photovoltaic devices

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Publication details

The article was received on 25 Dec 2013, accepted on 24 Mar 2014 and first published on 25 Mar 2014


Article type: Feature Article
DOI: 10.1039/C3TA15387H
Citation: J. Mater. Chem. A, 2014,2, 11545-11560
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    Design and control of organic semiconductors and their nanostructures for polymer–fullerene-based photovoltaic devices

    T. Umeyama and H. Imahori, J. Mater. Chem. A, 2014, 2, 11545
    DOI: 10.1039/C3TA15387H

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