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Issue 4, 2017
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Benchmark study of the length dependent thermal conductivity of individual suspended, pristine SWCNTs

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Abstract

The thermal conductivity of individual suspended single-walled carbon nanotubes (SWCNTs) has been theoretically predicated to increase with length but this has never been verified experimentally. This then leads to the question of whether the thermal conductivity saturates to a finite constant value in ultra-long SWCNTs. This paper reports on experimental measurements of the thermal conductivity of individual suspended SWCNTs as a function of the characteristic thermal transport length using the same individual suspended SWCNT sample. Interestingly, at around 360 K, the thermal conductivity first increases with increasing characteristic length and then saturates to a finite constant value at a characteristic length of ∼10 μm. These experimental results provide a fundamental understanding of the phonon transport characteristics in suspended, pristine SWCNTs.

Graphical abstract: Benchmark study of the length dependent thermal conductivity of individual suspended, pristine SWCNTs

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Publication details

The article was received on 31 Aug 2016, accepted on 08 Dec 2016 and first published on 09 Dec 2016


Article type: Paper
DOI: 10.1039/C6NR06901K
Nanoscale, 2017,9, 1496-1501

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    Benchmark study of the length dependent thermal conductivity of individual suspended, pristine SWCNTs

    J. Liu, T. Li, Y. Hu and X. Zhang, Nanoscale, 2017, 9, 1496
    DOI: 10.1039/C6NR06901K

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