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A Novel Photoanode with Three-Dimensionally, Hierarchically Ordered Nanobushes for Highly Efficient Photoelectrochemical Cells

Authors

  • Siva Krishna Karuturi,

    1. School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Jingshan Luo,

    1. Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Chuanwei Cheng,

    1. Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
    Current affiliation:
    1. Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Department of Physics, Tongji University, Shanghai 200092, P. R. of China
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  • Lijun Liu,

    1. School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
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  • Liap Tat Su,

    1. School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
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  • Alfred Iing Yoong Tok,

    Corresponding author
    1. School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
    • School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
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  • Hong Jin Fan

    Corresponding author
    1. Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
    • Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore.
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Abstract

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A 3D hierarchically ordered nanobush structure is fabricated for use as a photoanode in photoelectrochemical cells. The photoanode structure has several favorable intrinsic characteristics, including high interface area, direct electron transport pathways, and engineered light scattering centers. Sensitization with CdS quantum dots is demonstrated, and this nanobush photoanode is expected to be advantageous also in solar cells.

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