Advanced Materials

Thermal and Electrical Transport in Ultralow Density Single-Walled Carbon Nanotube Networks

Authors

  • Ke Jia Zhang,

    1. Department of Mechanical Engineering, University of Michigan, 2350 Hayward, Ann Arbor, MI 48109, USA
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  • Abhishek Yadav,

    1. Department of Mechanical Engineering, University of Michigan, 2350 Hayward, Ann Arbor, MI 48109, USA
    2. Center for Solar and Thermal Energy, Conversion (CSTEC), University of Michigan, 2300 Hayward Street, Ann Arbor, MI 48109, USA
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  • Kyu Hun Kim,

    1. Department of Materials Science & Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
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  • Youngseok Oh,

    1. Department of Materials Science & Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
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  • Mohammad F. Islam,

    1. Department of Materials Science & Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
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  • Ctirad Uher,

    1. Center for Solar and Thermal Energy, Conversion (CSTEC), University of Michigan, 2300 Hayward Street, Ann Arbor, MI 48109, USA
    2. Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, MI 48109, USA
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  • Kevin P. Pipe

    Corresponding author
    1. Department of Mechanical Engineering, University of Michigan, 2350 Hayward, Ann Arbor, MI 48109, USA
    2. Center for Solar and Thermal Energy, Conversion (CSTEC), University of Michigan, 2300 Hayward Street, Ann Arbor, MI 48109, USA
    3. Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, MI 48109, USA
    • Department of Mechanical Engineering, University of Michigan, 2350 Hayward, Ann Arbor, MI 48109, USA.
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Abstract

The thermal, electrical, and thermoelectric properties of aerogels of single-walled carbon nanotubes are characterized. Their ultralow density enables the transport properties of the junctions to be distinguished from those of the nanotubes themselves. Junction thermal and electrical conductances are found to be orders of magnitude larger than those found in typical dense SWCNT networks. In particular, the average junction thermal conductance is close to the theoretical maximum for a van der Waals bonded SWCNT junction.

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