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Effect of thin aluminum interlayer on growth and microstructure of carbon nanotubes

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Mathur, A, Roy, SS, Dickinson, C and McLaughlin, JAD (2010) Effect of thin aluminum interlayer on growth and microstructure of carbon nanotubes. CURRENT APPLIED PHYSICS, 10 (2). pp. 407-410. [Journal article]

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URL: http://dx.doi.org/10.1016/j.cap.2009.06.038

DOI: doi:10.1016/j.cap.2009.06.038

Abstract

The aluminum (Al) interlayer with various thicknesses ranging from 0.75 to 6 nm was deposited on silicon (Si) substrates prior to the deposition of ultra-thin iron (Fe) catalyst for the growth of carbon nanotubes. In this paper we report the effect of ultra-thin Al interlayer on the growth of multiwalled carbon nanotubes (MWCNTs). The SEM was used to examine the microstructures of nanotubes. We observed as the Al interlayer thickness increases the height of nanotube decreases. Raman spectra of MWCNT showed typical D and G peaks at 1345 cm−1 and 1575 cm−1, respectively. The XPS revealed the presence of Al and Fe on the top of CNT surface which were further supported by TEM. The high resolution TEM results also revealed bamboo like CNTs with diameter 10–40 nm.

Item Type:Journal article
Keywords:Interlayer; Carbon nanotubes (CNT); Chemical vapor deposition; Catalyst Interlayer; Carbon nanotubes (CNT); Chemical vapor deposition; Catalyst
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:406
Deposited By:Mrs Ann Blair
Deposited On:28 Oct 2009 13:24
Last Modified:07 Apr 2014 11:33

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