Advanced Materials

Interfacial Mechanics of Carbon Nanotube@Amorphous-Si Coaxial Nanostructures

Authors

  • Hongwei Liao,

    1. Department of Chemistry and Biochemistry, The University of Maryland, College Park, MD 20742, USA
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  • Khim Karki,

    1. Department of Materials Science and Engineering, The University of Maryland, College Park, MD 20742, USA
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  • Yin Zhang,

    1. Department of Chemistry and Biochemistry, The University of Maryland, College Park, MD 20742, USA
    2. Department of Physics, Xi'an JiaoTong University, Xi'an, China
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  • John Cumings,

    Corresponding author
    1. Department of Materials Science and Engineering, The University of Maryland, College Park, MD 20742, USA
    • Department of Materials Science and Engineering, The University of Maryland, College Park, MD 20742, USA
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  • YuHuang Wang

    Corresponding author
    1. Department of Chemistry and Biochemistry, The University of Maryland, College Park, MD 20742, USA
    • Department of Chemistry and Biochemistry, The University of Maryland, College Park, MD 20742, USA.
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Abstract

A cantilevered carbon nanotube/amorphous Si coaxial nanostructure is studied with in situ transmission electron microscopy. The α-Si shell breaks at the anchoring point to the supporting Si substrate. The broken α-Si shell is pulled out while the CNT core remains intact, illustrating the striking interfacial mechanical properties between the CNT core and the α-Si shell.

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