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Advanced Materials

Anchoring ZnO Particles on Functionalized Single Wall Carbon Nanotubes. Excited State Interactions and Charge Collection

Authors

  • F. Vietmeyer,

    1. Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
    2. Department of Chemistry & Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
    3. Department of Chemistry, University of Bielefeld, 33501 Bielefeld (Germany)
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  • B. Seger,

    1. Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
    2. Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
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  • P. V. Kamat

    1. Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
    2. Department of Chemistry & Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
    3. Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
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  • The research described herein was supported by the Office of Basic Energy Sciences of the US Department of Energy. F. V. acknowledges the financial support of German Academic Exchange Service in the International Study and Training Partnerships (ISAP). We also thank Istvan Robel and Kensuke Takechi for their assistance in emission and photoelectrochemical measurements. This is contribution NDRL 4699 from the Notre Dame Radiation Laboratory.

Abstract

A conducting scaffold of carbon nanotube architecture has been used to anchor ZnO nanoparticles. The interaction between functionalized carbon nanotubes (f-CNT) and photoexcited ZnO nanoparticles results in direct electron transfer between the two systems. The role of f-CNT in facilitating the charge collection and charge transport in the f-CNT-ZnO composite film is elucidated by photoelectrochemical measurements.

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