Speakers
Dr
Daniel Wamwangi
(wits)
Dr
Mathe Bhekumusa
(wits)
Description
Amorphous C/diamond-like thin films have been prepared by rf plasma enhanced vapour deposition from a CH4/Ar gas mixture. Infrared and optical-ultraviolet absorption characteristics are reported and used to characterize the bonding and optical properties of these films. The relationship between the optical band gap, dc self-bias and the hydrogen content is investigated. It is found that the hydrogen content is not directly related to the optical band gap. In addition, the tensile Young's modulus and the torsion shear modulus of the DLC films are measured using Brillouin light scattering and correlated with the possible growth of polymeric carbon chains and increased clustering.
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
PhD
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
yes
Main supervisor (name and email)<br>and his / her institution
Bhekumusa Mathe
Bhekumusa.Mathe@wits.ac.za
University of WITS
Apply to be<br> considered for a student <br> award (Yes / No)?
yes
Primary author
Mr
wilfred mbiombi
(wits)
Co-authors
Dr
Daniel Wamwangi
(wits)
Dr
Mathe Bhekumusa
(wits)
Prof.
david billing
(wits)
Dr
rudolph erasnus
(wits)
Peer reviewing
Paper
Paper files:
