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Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (11): 2247.

• Articles • Previous Articles     Next Articles

Preparation and Modification of TiO2 Thin Film Electrode in Dye-sensitized Solar Cell and Its Photoelectrochemical Properties

LI Li1,2, ZHANG Gui-You1, CHEN Ren-Jie1,2, Dorina Walther3, CHEN Shi1,2, WU Feng1,2*   

  1. 1. Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;
    2. National Development Center of Hi-tech. Green Materials, Beijing 100081, China;
    3. Brandenburg Technical University of Cottbus, Cottbus, Germany
  • Received:2008-12-05 Online:2009-11-10 Published:2009-11-10
  • Contact: WU Feng. E-mail: wufeng863@vip.sina.com
  • Supported by:

    国家“九七三”计划(批准号: 2009CB220106)资助.

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Abstract:

The tetraisopropyl titanate was used as titaniume source to prepare the TiO2 nanomaterial by the hydrothermal method. The TiO2 crystal is anatase. In order to enhance the electrode′s photoelectrochemical performance, the metal nickel doping and superficial gable neodymium oxide were used. The experimental results indicate that the nanometer TiO2 pellets have all the same shape and a particle size of approximately 17—18 nm. After nickel doping, the granularity increased obviously, but still maintained the even condition and the vesicular structure. Compared with the ordinary TiO2 thin film electrode, the metal doping and the superficial gable is helpful for separating the electron and the hole. The solar cell′s short circuit photoelectric current enhanced by 16% and the electro-optic transfer efficiency enhanced by 17%.

Key words: Hydrothermal method; TiO2 thin film; Dye sensitization; Doping

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