Hua-Chiang Wen

Learn More
The effects of H 2 flow rate during plasma pretreatment on synthesizing the multiwalled carbon nanotubes (MWCNTs) by using the microwave plasma chemical vapor deposition are investigated in this study. A H 2 and CH 4 gas mixture with a 9:1 ratio was used as a precursor for the synthesis of MWCNT on Ni-coated TaN/ Si(100) substrates. The structure and(More)
We investigated in this study structural and nanomechanical properties of zinc oxide (ZnO) thin films deposited onto Langasite sub-strates at 200 °C through radio frequency magnetron sputtering with an radio frequency power at 200 W in an O 2 /Ar gas mixture for different deposition time at 1, 2, and 3 h. Surface morphologies and crystalline structural(More)
In this study, we used metal organic chemical vapor deposition to form gallium nitride (GaN) epilayers on c-and a-axis sapphire substrates and then used the nanoscratch technique and atomic force microscopy (AFM) to determine the nanotribological behavior and deformation characteristics of the GaN epilayers, respectively. The AFM morphological studies(More)
  • 1