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Towards controlled growth of carbon nanotubes from germanium on nanoindented silicon substrates

Capasso, Andrea, Waclawik, Eric R., Bell, John M., Ruffell, Simon, Sgarlata, Anna, Scarselli, Manuela, De Crescenzi, Maurizio, & Motta, Nunzio (2010) Towards controlled growth of carbon nanotubes from germanium on nanoindented silicon substrates. In International Conference on Nanoscience and Nanotechnology (ICONN 2010), 21-26 February 2010, Sydney Convention and Exhibition Centre, Sydney. (In Press)

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    Abstract

    In this paper, we report on a metal-catalyst-free synthesis of carbon nanotubes (CNTs) on a pre-patterned Si(001) surface. Arrays of triangular-shaped holes were created by nanoindentation in specific sites of the sample. After germanium deposition and chemical vapor deposition (CVD) of acetylene, a few CNTs nucleated and grew from germanium nanoparticles. These results illustrate that it is possible to control the growth of CNTs without the use of any metal catalyst. By leading the assembly of Ge nanoparticles with a patterning technique, a precise control over the growth order is also attainable.

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    ID Code: 37308
    Item Type: Conference Paper
    Keywords: carbon nanotubes, nanoindentation, germanium, patterning, chemical vapor deposition
    Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > CONDENSED MATTER PHYSICS (020400) > Surfaces and Structural Properties of Condensed Matter (020406)
    Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanofabrication Growth and Self Assembly (100706)
    Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanomaterials (100708)
    Divisions: Past > Schools > Chemistry
    Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
    Past > QUT Faculties & Divisions > Faculty of Science and Technology
    Past > Schools > School of Engineering Systems
    Copyright Owner: Copyright 2010 Please consult the authors.
    Deposited On: 29 Sep 2010 10:09
    Last Modified: 11 Aug 2011 03:22

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