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Issue 3, 2017
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Inter-allotropic transformations in the heterogeneous carbon nanotube networks

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Abstract

The allotropic transformations of carbon provide an immense technological interest for tailoring the desired molecular structures in the scalable nanoelectronic devices. Herein, we explore the effects of morphology and geometric alignment of the nanotubes for the re-engineering of carbon bonds in the heterogeneous carbon nanotube (CNT) networks. By applying alternating voltage pulses and electrical forces, the single-walled CNTs in networks were predominantly transformed into other predetermined sp2 carbon structures (multi-walled CNTs and multi-layered graphitic nanoribbons), showing a larger intensity in a coalescence-induced mode of Raman spectra with the increasing channel width. Moreover, the transformed networks have a newly discovered sp2–sp3 hybrid nanostructures in accordance with the alignment. The sp3 carbon structures at the small channel are controlled, such that they contain up to about 29.4% networks. This study provides a controllable method for specific types of inter-allotropic transformations/hybridizations, which opens up the further possibility for the engineering of nanocarbon allotropes in the robust large-scale network-based devices.

Graphical abstract: Inter-allotropic transformations in the heterogeneous carbon nanotube networks

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Publication details

The article was received on 26 Oct 2016, accepted on 12 Dec 2016 and first published on 14 Dec 2016


Article type: Communication
DOI: 10.1039/C6NR08393E
Citation: Nanoscale, 2017,9, 1014-1021
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    Inter-allotropic transformations in the heterogeneous carbon nanotube networks

    H. Y. Jung, S. M. Jung, D. W. Kim and Y. J. Jung, Nanoscale, 2017, 9, 1014
    DOI: 10.1039/C6NR08393E

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