2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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TechConnect Summit
Clean Technology 2008

Optimized growth of vertically aligned single-walled carbon nanotubes: densification, chemical processing, and property measurements of SWNT films

R.H. Hauge, C.L. Pint, S.T. Pheasant, N. Nicholas, Y-Q. Xu, W. Adams, H. Schmidt, M. Pasquali
Rice University, US

Keywords:
chemical vapor deposition, carbon nanotubes

Abstract:
This work encompasses our studies at Rice University detailing our investigation into optimal vertically aligned single-walled carbon nanotube growth with hot filament chemical vapor deposition. We first present the science behind growth that we have observed in our experiments: the role of water, catalyst, temperature, pressure, carbon feedstock, as well as the role of a high density support in minimizing mixed catalyst-support oxide formation. Next, we present a new way of growing vertically aligned carbon nanotubes on nanostructured substrates that has been observed to result in very high yields of carbon nanotubes. Finally, we discuss our effort toward scaling up the growth of vertically aligned SWNTs on metal foils, in addition to discussing the electrical and mechanical properties of neat and impregnated SWNT films made from these nanotube arrays.


Nanotech 2008 Conference Program Abstract