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)
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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|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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