Direct attachment of well-aligned single-walled carbon nanotube architectures to silicon (100) surfaces: a simple approach for device assembly

dc.contributor.authorYu, J.
dc.contributor.authorShapter, J.
dc.contributor.authorQuinton, J.
dc.contributor.authorJohnston, M.
dc.contributor.authorBeattie, D.
dc.date.issued2007
dc.description.abstractA new approach for the attachment of vertically-aligned shortened carbon nanotube architectures to a silicon (100) substrate by chemical anchoring directly to the surface has been demonstrated for the first time. The ordered assembly of single-walled carbon nanotubes (SWCNTs) was accomplished by hydroxylating the silicon surface followed by a condensation reaction with carboxylic acid functionalised SWCNTs. This new nanostructure has been characterised by X-ray photoelectron, Raman and Fourier transform infrared (FTIR) spectroscopy as well as scanning electron and atomic force microscopy. The assembly behaviour of SWCNTs onto the silicon surface shows a fast initial step producing isolated functionalised carbon nanotubes or nanotube bundles anchored to the silicon surface followed by a slower step where the adsorbed nanotubes grow into larger aggregates via van der Waals interactions between adsorbed and solvated nanotubes. The electrochemical and optical properties of the SWCNTs directly attached to silicon have also been investigated. These new nanostructures are excellent electrochemical electrodes. They also fluoresce in the wavelength range 650-800 nm. The successful attachment of the SWCNTs directly to silicon provides a simple, new avenue for fabrication and development of silicon-based nanoelectronic, nano-optoelectronic and sensing devices. Compared to existing techniques, this new approach has several advantages including low operating temperature, low cost and the possibility of further modification.
dc.description.statementofresponsibilityJingxian Yu, Joseph G. Shapter, Jamie S. Quinton, Martin R. Johnston and David A. Beattie
dc.identifier.citationPhysical Chemistry Chemical Physics, 2007; 9(4):510-520
dc.identifier.doi10.1039/B615096A
dc.identifier.issn1463-9076
dc.identifier.issn1463-9084
dc.identifier.orcidYu, J. [0000-0002-6489-5988]
dc.identifier.urihttp://hdl.handle.net/2440/63211
dc.language.isoen
dc.publisherRoyal Soc Chemistry
dc.rights© Royal Society of Chemistry 2007
dc.source.urihttps://doi.org/10.1039/b615096a
dc.subjectNanotubes, Carbon
dc.subjectSilicon
dc.subjectCrystallization
dc.subjectMaterials Testing
dc.subjectMicroelectrodes
dc.subjectElectric Impedance
dc.subjectAdsorption
dc.subjectParticle Size
dc.subjectSurface Properties
dc.subjectNanotechnology
dc.titleDirect attachment of well-aligned single-walled carbon nanotube architectures to silicon (100) surfaces: a simple approach for device assembly
dc.typeJournal article
pubs.publication-statusPublished

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