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Metal catalyst-free low-temperature carbon nanotube growth on SiGe islands

Uchino, T., Bourdakos, K.N., de Groot, C.H., Ashburn, P., Kiziroglou, M.E., Dilliway, G.D. and Smith, D.C. (2005) Metal catalyst-free low-temperature carbon nanotube growth on SiGe islands Applied Physics Letters, 86, (23), 233110-[3pp]. (doi:10.1063/1.1946191).

Record type: Article


A metal-catalyst-free growth method of carbon nanotubes (CNTs) has been developed using chemical vapor deposition of CNTs on carbon-implanted SiGe islands on Si substrates. From scanning electron microscopy and Raman measurements, the fabricated CNTs are identified as single-walled CNTs with a diameter ranging from 1.2 to 1.6 nm. Essential parts of the substrate preparation after CVD SiGe growth and carbon implant are a chemical oxidization by hydrogen peroxide solution and a heat treatment at 1000 °C prior to CNT growth. We believe that these processes enhance surface decomposition and assist the formation of carbon clusters, which play a role in seeding CNT growth. The growth technique is a practical method of growing metal-free CNTs for a variety of applications, while at the same time opening up the prospect of merging CNT devices into silicon very-large-scale-integration technology.

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Published date: 2005


Local EPrints ID: 57622
ISSN: 0003-6951
PURE UUID: ddc19363-1bc9-4757-9e45-e1ff96accfe8
ORCID for C.H. de Groot: ORCID iD

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Date deposited: 13 Aug 2008
Last modified: 24 Jul 2017 16:35

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Author: T. Uchino
Author: K.N. Bourdakos
Author: C.H. de Groot ORCID iD
Author: P. Ashburn
Author: M.E. Kiziroglou
Author: G.D. Dilliway
Author: D.C. Smith

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