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Issue 29, 2011
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Two flexible counter electrodes based on molybdenum and tungsten nitrides for dye-sensitized solar cells

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Abstract

Two novel flexible counter electrodes (CEs) on Ti sheets using molybdenum and tungsten nitrides (Mo2N, W2N) as catalysts were synthesized and used in a dye-sensitized solar cell (DSC) system. High catalytic activity of the two nitride CEs for the reduction of triiodide were proved by cyclic voltammetry, electrochemical impedance spectroscopy and Tafel-polarization measurements. The DSCs based on Mo2N and W2N CEs achieved power conversion efficiencies of 6.38 and 5.81%, reaching 91 and 83% of the photovoltaic performance of the DSC using a Pt CE, respectively. This research paves a promising way to develop new CE catalysts and reduce the cost of DSCs.

Graphical abstract: Two flexible counter electrodes based on molybdenum and tungsten nitrides for dye-sensitized solar cells

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Publication details

The article was received on 05 Apr 2011, accepted on 09 May 2011 and first published on 20 Jun 2011


Article type: Paper
DOI: 10.1039/C1JM11422K
Citation: J. Mater. Chem., 2011,21, 10761-10766
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    Two flexible counter electrodes based on molybdenum and tungsten nitrides for dye-sensitized solar cells

    M. Wu, Q. Zhang, J. Xiao, C. Ma, X. Lin, C. Miao, Y. He, Y. Gao, A. Hagfeldt and T. Ma, J. Mater. Chem., 2011, 21, 10761
    DOI: 10.1039/C1JM11422K

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