Abstract
Silicon carbide (SiC) thin films were prepared at low temperature using the hot wire chemical vapor deposition from SiH4 and CH4 gases. The SiH4 to CH4 flow rate ratio was kept constant at 0.05 and the effects of total gas partial pressure and the deposition pressure on the structural and compositional properties of the SiC thin films were investigated. The deposition rate of the films increased with the increase in total gas partial pressure but decreased with the increase in deposition pressure. Fourier transforms infrared spectra and X-ray diffraction revealed the formation of nanocrystalline SiC at low total gas partial pressure and high deposition pressure. Only Si-rich amorphous SiC was grown at higher total gas partial pressure as verified by Raman scattering spectroscopy.
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Shariatmadar Tehrani, F. Influence of total gas partial pressure on the structural formation of SiC thin films deposited by HWCVD technique. J Mater Sci: Mater Electron 27, 11457–11462 (2016). https://doi.org/10.1007/s10854-016-5272-0
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DOI: https://doi.org/10.1007/s10854-016-5272-0