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Advanced Materials

Formation of Highly Ordered VO2 Nanotubular/Nanoporous Layers and Their Supercooling Effect in Phase Transitions

Authors

  • Yang Yang,

    1. WW4-LKO, Department of Materials Science, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
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  • Kiyoung Lee,

    1. WW4-LKO, Department of Materials Science, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
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  • Mirijam Zobel,

    1. Nanomaterials characterization, LKS, Department of Physics, University of Erlangen-Nuremberg, Staudtstrasse 3, 91058 Erlangen, Germany
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  • Mirza Maćković,

    1. Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
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  • Tobias Unruh,

    1. Nanomaterials characterization, LKS, Department of Physics, University of Erlangen-Nuremberg, Staudtstrasse 3, 91058 Erlangen, Germany
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  • Erdmann Spiecker,

    1. Center for Nanoanalysis and Electron Microscopy (CENEM), Department of Materials Science, University of Erlangen-Nuremberg, Cauerstrasse 6, 91058 Erlangen, Germany
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  • Patrik Schmuki

    Corresponding author
    1. WW4-LKO, Department of Materials Science, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany
    • WW4-LKO, Department of Materials Science, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen, Germany.
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Abstract

The fabrication of self-organized VO2 nanotubular/nanoporous layers is demonstrated by self-organizing anodization, followed by a suitable heat treatment. These VO2 layers show a reversible metal to insulator transition (MIT) at 70 and 44 °C, when heating and cooling, respectively.

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