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A stable photoelectrochemical graphene/CdS/TiO2 film for nano-photoanode

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Abstract

The photoelectrochemical (PEC) performance of TiO2 nano-photoanode films was seriously limited due to week photoresponse, effortless recombination of photogenerated electrons/holes, and instability. In this work, we used narrow bandgap semiconductor CdS quantum dots that decorated TiO2 nanotube arrays to enhance its PEC performance. In addition, ultra-thin transparent grapheme oxide (GO) spreads on the surface of TiO2 photoanode film to avoid its light corrosion and improve the stability. Scanning electron microscope (SEM) images showed that the layer GO is well distributed on the surface of CdS/TiO2 film, and composite film GO/CdS/TiO2 has good PEC stability.

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Authors and Affiliations

  1. State Key Laboratory of Shield Machine and Boring Technology, Zhengzhou, 450001, China

    Kairong Hong & Jianjun Zhou

  2. Beijing Higher Institution Engineering Research Center of Energy Engineering Advanced Joining Technology, Beijing Institute of Petrochemical Technology, Beijing, 102617, China

    Haodong Tong & Canfeng Zhou

Authors
  1. Kairong Hong
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  2. Jianjun Zhou
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  3. Haodong Tong
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  4. Canfeng Zhou
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Correspondence to Canfeng Zhou.

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Hong, K., Zhou, J., Tong, H. et al. A stable photoelectrochemical graphene/CdS/TiO2 film for nano-photoanode. MRS Communications 11, 57–61 (2021). https://doi.org/10.1557/s43579-021-00013-3

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  • DOI: https://doi.org/10.1557/s43579-021-00013-3

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