Fabrication of Carbon Based Nanostructured Materials on Si/SiO2 Substrate and Their Growth Mechanism over Different Catalysts

Authors: Tiwari DK

Volume 5, Issue 1

Abstract

In this study, carbon based nanostructured material was synthesized by catalytic chemical vapor deposition (CCVD) technique using metallic (Ni, Co) and Semiconductor (FeCl3.6H2O/ZnO) catalysts on Si/SiO2 substrates. Acetylene (C2H2) and argon were utilized as a precursor and carrier gases respectively. The changes in surface morphology, crystal structure, elemental distribution, surface roughness and crystalline character were observed by scanning electron microscopy (SEM), transmission electron microscope (TEM), energy dispersive x-ray spectroscopy (EDS), atomic force microscopy (AFM) and Raman spectroscopy respectively. The results show the dependence of carbon nanostructured materials growth on Si/SiO2 substrates using catalysts; Ni, Co and FeCl3.6H2O/ZnO found to be in the range of 10-20 min at 900/1100 ºC temperature. This study can be fruitfully employed for the fabrication of Nano-sensors.

Keywords: Carbon Nanofibers; Catalysts; Metal-Oxides; Nanocomposites; Raman; Semiconductor; Zno

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