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Enhancing the performance of dye-sensitized solar cells by benzoic acid modified TiO2 nanorod electrode

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  • Liu, Jincheng
  • Wang, Yinjie
  • Sun, Darren

Abstract

The anatase TiO2 nanorods capped by oleic acid with the length of 30–50 nm and diameter of approximately 4–5 nm were prepared by a facile two-phase hydrothermal method. The oleic acid ligands attached on the surface of TiO2 nanorods were completely exchanged by benzoic acid ligands. The dye-sensitized solar cell (DSSC) fabricated based on the benzoic acid modified TiO2 nanorod electrodes exhibited a higher power conversion efficiency of 6.37% than that (5.1%) of the P25 TiO2 based DSSC. The surface modification by benzoic acid can effectively improve the hydrophility of TiO2 nanorods, leading to an increased short circuit current density and a higher open circuit voltage. This study provided a facile alternative method to fabricate highly efficient TiO2 nanorod-based electrodes for DSSCs.

Suggested Citation

  • Liu, Jincheng & Wang, Yinjie & Sun, Darren, 2012. "Enhancing the performance of dye-sensitized solar cells by benzoic acid modified TiO2 nanorod electrode," Renewable Energy, Elsevier, vol. 38(1), pages 214-218.
    • Handle: RePEc:eee:renene:v:38:y:2012:i:1:p:214-218
    DOI: 10.1016/j.renene.2011.07.028
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    Cited by:

    1. Su, En-Chin & Huang, Bing-Shun & Liu, Chao-Chang & Wey, Ming-Yen, 2015. "Photocatalytic conversion of simulated EDTA wastewater to hydrogen by pH-resistant Pt/TiO2–activated carbon photocatalysts," Renewable Energy, Elsevier, vol. 75(C), pages 266-271.

    More about this item

    Keywords

    TiO2; Nanorods; Ligand exchange; Dye-sensitized solar cells;
    All these keywords.

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