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Advanced Materials

Superstrong Low-Resistant Carbon Nanotube–Carbide–Metal Nanocontacts

Authors

  • Ming-Sheng Wang,

    Corresponding author
    1. World Premier International Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1 – 1, Tsukuba, Ibaraki 3050044 (Japan)
    • World Premier International Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1 – 1, Tsukuba, Ibaraki 3050044 (Japan).
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  • Dmitri Golberg,

    1. World Premier International Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1 – 1, Tsukuba, Ibaraki 3050044 (Japan)
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  • Yoshio Bando

    1. World Premier International Center for Materials, Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1 – 1, Tsukuba, Ibaraki 3050044 (Japan)
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Abstract

An in-situ TEM nanowelding process via Joule heating was used to achieve superstrong CNT-carbide-metal contacts, in which all shells of a multiwalled CNT contact the tungsten wire through the intermediate tungsten carbide layer. A remarkably high tensile strength (5–15GPa) and ultralow resistance(<1 kΩ) were documented for the heterojunctions, which were also sufficiently robust in CNT field-emission applications.

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