Resonance Raman Study on Carbon Nanotubes Formation |
| A. Steplewska and E. Borowiak-Palen
Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical Engineering and Chemical Technology, Szczecin University of Technology, Pułaskiego 10, 70-322 Szczecin, Poland |
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| Carbon nanotubes can be obtained from variety of the molecular precursors in chemical vapor deposition processes. The low growth temperatures strongly increase the compatibility of carbon nanotubes growth with current complementary metal-oxide-silicon technology for carbon nanotubes based electronics. Here, we show the low temperature growth of multiwalled carbon nanotubes in acetylene chemical vapor deposition with Fe-Co/MgO. The catalyst mix was active already at 450°C. The higher temperatures growth (500°C and 550°C) were also tested in order to estimate the best thermal condition in respect of the sample quality (via thermogravimetric analyzer) and the sample relative purity (via resonance Raman spectroscopy). High resolution transmission electron microscope was used to determine the morphology of the samples. |
| DOI: 10.12693/APhysPolA.116.93 PACS numbers: 61.46.Fg, 61.46.Np, 81.07.De, 78.30.-j, 61.46.+w |