EFFECT OF METHANE FLOW RATE ON THE  PROPERTIES OF HWCVD SILICON CARBIDE THIN FILMS

Authors

  • F. Shariatmadar Tehrani Solid State Research Laboratory, Physics Department, University of Malaya, 50603 Kuala Lumpur, Malaysia Author
  • R. Ritiikos Solid State Research Laboratory, Physics Department, University of Malaya, 50603 Kuala Lumpur, Malaysia Author
  • B. T. Goh Solid State Research Laboratory, Physics Department, University of Malaya, 50603 Kuala Lumpur, Malaysia Author
  • M.R. Muhamad Solid State Research Laboratory, Physics Department, University of Malaya, 50603 Kuala Lumpur, Malaysia Author
  • S. A. Rahman Solid State Research Laboratory, Physics Department, University of Malaya, 50603 Kuala Lumpur, Malaysia Author

Keywords:

SiC, thin film, optical bond gap

Abstract

Silicon carbide (SiC) thin films were prepared by Hot Wire Chemical Vapor Deposition (HWCVD) from SiH4/CH4 gases on glass and crystalline silicon substrates. The SiH4 gas flow rate was 1 sccm and influences of CH4 gas flow rate, [CH4], on structural properties of SiC thin films were investigated. The mean crystallite size was increased with decreasing [CH4] from 100 to 10 sccm. Infrared absorption spectra showed that the Si–C bonds increased with decreasing the methane gas flow rate.

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Published

23-05-2026