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Issue 22, 2013
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Efficient ZnO-based counter electrodes for dye-sensitized solar cells

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Abstract

ZnO is usually exploited as a photoelectrode for dye-sensitized solar cells (DSSCs), but it has not been applied as a DSSC counter electrode. Herein, it is reported that ZnO with poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) could be an efficient DSSC counter electrode with a maximum power conversion efficiency of 8.17%. Furthermore, it was found that the conversion efficiency of DSSCs with the ZnO/PEDOT:PSS counter electrode strongly depends on the ZnO content. Density functional theory (DFT) calculations, electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV) measurements revealed that the variation of the conversion efficiency with ZnO content is determined by the fill factor (FF), which is dependent on the combination of the catalytic activity of ZnO and the conductivity of PEDOT:PSS.

Graphical abstract: Efficient ZnO-based counter electrodes for dye-sensitized solar cells

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Publication details

The article was received on 02 Mar 2013, accepted on 28 Mar 2013 and first published on 02 Apr 2013


Article type: Paper
DOI: 10.1039/C3TA10892A
Citation: J. Mater. Chem. A, 2013,1, 6622-6628
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    Efficient ZnO-based counter electrodes for dye-sensitized solar cells

    H. Wang, W. Wei and Y. H. Hu, J. Mater. Chem. A, 2013, 1, 6622
    DOI: 10.1039/C3TA10892A

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