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Low-Cost Molybdenum Carbide and Tungsten Carbide Counter Electrodes for Dye-Sensitized Solar Cells

Authors

  • Dr. Mingxing Wu,

    1. State Key Laboratory of Fine Chemicals, Faculty of Chemicals, Environmental and Biological Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province 116024 (P. R. China), Fax: (+86) 411-8498-6237 http://finechem.dlut.edu.cn/matingli
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  • M. Sc. Xiao Lin,

    1. State Key Laboratory of Fine Chemicals, Faculty of Chemicals, Environmental and Biological Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province 116024 (P. R. China), Fax: (+86) 411-8498-6237 http://finechem.dlut.edu.cn/matingli
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  • Prof. Anders Hagfeldt,

    1. Department of Physical and Analytical Chemistry, Uppsala University, Box 259, 75105 Uppsala (Sweden)
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  • Prof. Tingli Ma

    Corresponding author
    1. State Key Laboratory of Fine Chemicals, Faculty of Chemicals, Environmental and Biological Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province 116024 (P. R. China), Fax: (+86) 411-8498-6237 http://finechem.dlut.edu.cn/matingli
    • State Key Laboratory of Fine Chemicals, Faculty of Chemicals, Environmental and Biological Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province 116024 (P. R. China), Fax: (+86) 411-8498-6237 http://finechem.dlut.edu.cn/matingli
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  • This work was supported by the 863 Program (grant no. 2009AA03Z220) and the NSFC (grant no. 50773008).

Abstract

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Sunny prospects for renewable energy: Molybdenum and tungsten carbides embedded in ordered nanomesoporous carbon materials as well as Mo2C and WC are proposed as alternatives to the expensive platinum counter electrode (Pt CE). The preparation of the CEs was optimized, and the dye-sensitized solar cells (DSCs; see picture) equipped with these CEs show a higher energy conversion efficiency than those devices with a Pt CE.

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