Research Paper

Preparation and Characterization of Nanocrystalline Cu2O/TiO2 Heterojunction Film Electrode

  • TANG Yi-Wen ,
  • CHEN Zhi-Gang ,
  • ZHANG Li-Sha ,
  • JIA Zhi-Yong ,
  • ZHANG Xin
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  • 1. Institute of Nano-science and Technology, Central China Normal University,
    Wuhan 430079, China;
    2. Laboratory of Advanced Materials, Fudan University, Shanghai 200433,China

Received date: 2005-03-07

  Revised date: 2005-05-09

  Online published: 2006-03-20

Abstract

TiO2 film; heterojunction electrode; photoelectrochemistryThis paper introduced the electrochemical deposition of Cu2O thin films on TiO2 films by cathodic reduction to form p-Cu2O/n-TiO2 heterostructure electrode. The effects of bath temperature on film thickness, purity and morphology of Cu2O films were studied. Pure spherically shaped Cu2O grains with 40~50nm diameter were obtained. It is found that annealing at 200℃ can improve the spectral transmittance of the Cu2O film and the film has a band gap of 2.06eV. The measurements of photoelectrochemical behavior of the nanocrystalline p-Cu2O/n-TiO2 heterostructure electrode show that such heterostructure electrode produces strong n-type spectral response and can improve the photoelectron conversion efficiency.

Cite this article

TANG Yi-Wen , CHEN Zhi-Gang , ZHANG Li-Sha , JIA Zhi-Yong , ZHANG Xin . Preparation and Characterization of Nanocrystalline Cu2O/TiO2 Heterojunction Film Electrode[J]. Journal of Inorganic Materials, 2006 , 21(2) : 453 -458 . DOI: 10.3724/SP.J.1077.2006.00453

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