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Charge Transfer across the GaN/Pt Nanoparticle Interface in an Electrolyte

Authors

  • Susanne Schäfer,

    1. Walter Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching (Germany)
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  • Sonja A. Wyrzgol,

    1. Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching (Germany)
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  • Prof. Johannes A. Lercher,

    1. Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85747 Garching (Germany)
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  • Prof. Martin Stutzmann,

    1. Walter Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching (Germany)
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  • Dr. Ian D. Sharp

    Corresponding author
    1. Walter Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching (Germany)
    2. Current address: Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720 (USA), Fax: (+1) 510-495-8700
    • Walter Schottky Institut and Physik Department, Technische Universität München, Am Coulombwall 4, 85748 Garching (Germany)

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Abstract

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Here today, GaN tomorrow: Charge-transfer pathways on GaN photoelectrodes that were decorated with Pt nanoparticles have been investigated. The surface loading of Pt was found to suppress the surface-state-mediated charge transfer and to enhance the stability of the GaN surface in aqueous electrolyte.

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