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Issue 8, 2014
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A quasi core–shell nitrogen-doped graphene/cobalt sulfide conductive catalyst for highly efficient dye-sensitized solar cells

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Abstract

A novel conductive catalyst was designed based on a quasi core–shell structure of N-doped graphene/cobalt sulfide. This platinum-free catalyst shows high catalytic activity and conductivity owing to close interactions between the core (cobalt sulphide) and the shell (N-doped graphene). It enables dye-sensitized solar cells (DSSCs) to obtain high energy conversion efficiency up to 10.71%, which is as far as we know the highest efficiency for DSSCs based on a platinum-free counter electrode.

Graphical abstract: A quasi core–shell nitrogen-doped graphene/cobalt sulfide conductive catalyst for highly efficient dye-sensitized solar cells

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Publication details

The article was received on 30 Apr 2014, accepted on 02 Jun 2014 and first published on 02 Jun 2014


Article type: Communication
DOI: 10.1039/C4EE01339E
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Citation: Energy Environ. Sci., 2014,7, 2637-2641
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    A quasi core–shell nitrogen-doped graphene/cobalt sulfide conductive catalyst for highly efficient dye-sensitized solar cells

    E. Bi, H. Chen, X. Yang, W. Peng, M. Grätzel and L. Han, Energy Environ. Sci., 2014, 7, 2637
    DOI: 10.1039/C4EE01339E

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