Production of Diamond Films at High Rates using a DC Arc Jet

This work was performed in the lab for the previous few years, but we stopped working on the DC arcjet in early 2007 to concentrate on MW CVD diamond. The following details relate to the previous work (1997-2007).

We are studying the growth of CVD diamond using a 10 kW DC Arc Jet system which is on loan from Element Six. The project is sponsored by the EPSRC and its aims are to:

• grow diamond at high rates (hopefully 100 μm h^-1 or more)
• understand the chemistry occurring in this hostile environment using sophisticated laser probing techniques, such as Cavity Ring Down Spectroscopy.

	The DC Arc Jet system
	Close up of the Arc Jet chamber and pumps
	The torch plume striking the substrate
	Cross-section of a 100 μm-thick CVD diamond film grown by DC arc jet. The columnar nature of the growth is clearly evident, as is the increase in film quality and grain size with growth time.
	Laser Raman spectrum of a 200μm-thick diamond film grown by DC Arc Jet
	Laser Raman Spectrum presented in JCAMP-DX format. If you have the Chime plug-in for your browser you can view this spectrum interactively.