Photonic sorting of aligned, crystalline carbon nanotube textiles

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dc.contributor.authorBulmer, John S.
dc.contributor.authorGspann, Thurid S.
dc.contributor.authorOrozco, Francisco
dc.contributor.authorSparkes, Martin
dc.contributor.authorKoerner, Hilmar
dc.contributor.authorDi Bernardo, A.
dc.contributor.authorNiemiec, Arkadiusz
dc.contributor.authorRobinson, J. W. A.
dc.contributor.authorKoziol, Krzysztof K. K.
dc.contributor.authorElliott, James A.
dc.contributor.authorO’Neill, William
dc.date.accessioned2017-12-22T09:15:02Z
dc.date.available2017-12-22T09:15:02Z
dc.date.issued2017-10-11
dc.description.abstractFloating catalyst chemical vapor deposition uniquely generates aligned carbon nanotube (CNT) textiles with individual CNT lengths magnitudes longer than competing processes, though hindered by impurities and intrinsic/extrinsic defects. We present a photonic-based post-process, particularly suited for these textiles, that selectively removes defective CNTs and other carbons not forming a threshold thermal pathway. In this method, a large diameter laser beam rasters across the surface of a partly aligned CNT textile in air, suspended from its ends. This results in brilliant, localized oxidation, where remaining material is an optically transparent film comprised of few-walled CNTs with profound and unique improvement in microstructure alignment and crystallinity. Raman spectroscopy shows substantial D peak suppression while preserving radial breathing modes. This increases the undoped, specific electrical conductivity at least an order of magnitude to beyond that of single-crystal graphite. Cryogenic conductivity measurements indicate intrinsic transport enhancement, opposed to simply removing nonconductive carbons/residual catalyst.en_UK
dc.identifier.citationBulmer, JS.; Gspann TS.; Orozco F.; et. al. Photonic sorting of aligned, crystalline carbon nanotube textiles. Scientific Reports Vol. 7, Iss. 1, Article number: 12977en_UK
dc.identifier.issn2045-2322
dc.identifier.urihttp://dx.doi.org/10.1038/s41598-017-12605-y
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12828
dc.language.isoenen_UK
dc.publisherNature Publishing Groupen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titlePhotonic sorting of aligned, crystalline carbon nanotube textilesen_UK
dc.typeArticleen_UK

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