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Diameter selection of carbon nanotubes in polymer/ SWCNT nanowire arrays fabricated by template wetting

AuthorsDomingo, Concepción ; García-Gutiérrez, Mari Cruz
KeywordsCarbon nanotubes
Polymer nanowires
Raman spectroscopy
Template wetting
Issue Date2014
PublisherJohn Wiley & Sons
CitationChemphyschem : a European journal of chemical physics and physical chemistry 15: 4001- 4005 (2014)
Abstract© 2014 Wiley-VCH Verlag GmbH & Co. KGaA. Arrays of polymer/SWCNT (single-wall carbon nanotube) nano-wires supported on a residual nanocomposite film are prepared by melt wetting using porous anodic aluminum oxide (AAO) as a template. The aggregation parameter of SWCNTs extracted from the analysis of their Raman radial breathing modes gives the highest value for native SWCNTs, indicating that they tend to organize into bundles giving rise to a high degree of aggregation. However, the lowest value achieved at the interface between the nanocomposite film and the nanoarray is explained considering that the forces acting during infiltration are able to disrupt the SWCNT bundles inducing nanotube dispersion. In addition, scanning the nanoarrays along the nanowires length by Raman microscopy has shown a diameter selection of SWCNTs by the AAO membrane. The results reported in this work reveal that it is possible to fabricate arrays of nanowires with homogeneous SWCNT distribution along tens of microns, optimizing nanotube dispersion.
Identifiersdoi: 10.1002/cphc.201402575
issn: 1439-7641
Appears in Collections:(CFMAC-IEM) Artículos
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