Advanced Materials

Hollow Urchin-like ZnO thin Films by Electrochemical Deposition

Authors

  • Jamil Elias,

    Corresponding author
    1. Laboratory for Mechanics of Materials and Nanostructures Empa Materials Science and Technology Feuerwerkstrasse 39, 3602 Thun, Switzerland
    • Laboratory for Mechanics of Materials and Nanostructures Empa Materials Science and Technology Feuerwerkstrasse 39, 3602 Thun, Switzerland.
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  • Claude Lévy-Clément,

    1. Institut de Chimie et Matériaux de Paris-Est, CNRS, UMR 7182 2-8 rue Henri Dunant, 94320 Thiais Cedex, France
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  • Mikhael Bechelany,

    1. Laboratory for Mechanics of Materials and Nanostructures Empa Materials Science and Technology Feuerwerkstrasse 39, 3602 Thun, Switzerland
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  • Johann Michler,

    1. Laboratory for Mechanics of Materials and Nanostructures Empa Materials Science and Technology Feuerwerkstrasse 39, 3602 Thun, Switzerland
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  • Guillaume-Yangshu Wang,

    1. Institut de Chimie et Matériaux de Paris-Est, CNRS, UMR 7182 2-8 rue Henri Dunant, 94320 Thiais Cedex, France
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  • Zhao Wang,

    1. Laboratory for Mechanics of Materials and Nanostructures Empa Materials Science and Technology Feuerwerkstrasse 39, 3602 Thun, Switzerland
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  • Laetitia Philippe

    1. Laboratory for Mechanics of Materials and Nanostructures Empa Materials Science and Technology Feuerwerkstrasse 39, 3602 Thun, Switzerland
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Abstract

Arrays of ordered hollow urchin-like ZnO single-crystal nanowires with controlled core dimensions and wire morphology are obtained by a new method that combines electrochemical deposition with colloidal templating rendered electrically conductive. This method opens new opportunities for processing novel metal oxide or hydroxide materials based on a similar growth mechanism. Such ordered structures exhibit superior optical reflectance compared to nanowire arrays.

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