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Issue 48, 2010
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Surfactant additives for improved photovoltaic effect of polymer solar cells

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Abstract

We herein report on the photovoltaic (PV) effect of a polymer bulk-heterojunction (BHJ) layer consisting of poly(3-hexylthiophene) : methanofullerene mixed with a surfactant additive. The mixed surfactant is poly(oxyethylene tridecyl ether) (PTE). Excellent performance was achieved by using the surfactant as an additive in the PV layer, thereby increasing the short-circuit current density and fill factor. These increases led to a power conversion efficiency of 4.51 ± 0.16%, which was higher than that (3.89 ± 0.08%) of the reference device without the surfactant. This improvement can be attributed to the increased dissociation efficiency of the bound eh pairs, which may be due to the oriented PTE surfactant molecules at interfaces between the phase-separated BHJ domains. These results suggest that a PV layer mixed with a PTE surfactant additive is a promising functional composite material for use in polymer PV cells.

Graphical abstract: Surfactant additives for improved photovoltaic effect of polymer solar cells

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Publication details

The article was received on 02 Jul 2010, accepted on 08 Sep 2010 and first published on 09 Oct 2010


Article type: Paper
DOI: 10.1039/C0JM02091E
Citation: J. Mater. Chem., 2010,20, 10862-10868
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    Surfactant additives for improved photovoltaic effect of polymer solar cells

    B. Park, Y. H. Huh and M. Kim, J. Mater. Chem., 2010, 20, 10862
    DOI: 10.1039/C0JM02091E

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