Abstract
The enhancement of catalyst efficiency in chemical vapor deposition (CVD) of vertically aligned carbon nanotubes on predeposited metal catalyst films was discussed. Ferrocene was found to enhance carbon nanotube growth rates and extend growth to 3.25 mm thick carbon nanotube films. It was found that the temperature dependence of the carbon nanotube growth with ferrocene exhibits a steep drop at high substrate temperatures and a loss of vertical alignment at 900°C. It was suggested that the reaction mechanism of vertically aligned carbon nanotube growth is governed by a heterogeneous intermediate step.
Original language | English |
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Pages (from-to) | 1759-1761 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 84 |
Issue number | 10 |
DOIs | |
State | Published - Mar 8 2004 |