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Issue 33, 2015
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Low bandgap copolymers based on monofluorinated isoindigo towards efficient polymer solar cells

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Abstract

To explore the effectiveness of monofluorinated isoindigo as an electron-deficient building block in push–pull conjugated polymers for organic solar cell applications, four low bandgap copolymers are effectively synthesized and characterized. The effects of fluorine introduction, thiophene spacer length and polymer molar mass on the general electro-optical polymer characteristics, thin film blend microstructure and electronic performance are investigated. Isoindigo monofluorination effectively improves the power conversion efficiency from 2.8 up to 5.0% upon molar mass optimization, without using any processing additives or post-treatments.

Graphical abstract: Low bandgap copolymers based on monofluorinated isoindigo towards efficient polymer solar cells

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Publication details

The article was received on 11 May 2015, accepted on 30 Jun 2015 and first published on 03 Jul 2015


Article type: Paper
DOI: 10.1039/C5PY00693G
Citation: Polym. Chem., 2015,6, 6040-6049
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    Low bandgap copolymers based on monofluorinated isoindigo towards efficient polymer solar cells

    M. Tomassetti, F. Ouhib, A. Wislez, A. Duwez, H. Penxten, W. Dierckx, I. Cardinaletti, R. A. A. Bovee, G. W. P. van Pruissen, C. Jérôme, J. Manca, W. Maes and C. Detrembleur, Polym. Chem., 2015, 6, 6040
    DOI: 10.1039/C5PY00693G

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