Published online by Cambridge University Press: 26 February 2011
Diamond films have been deposited on silicon wafers by scanning an oxyacetylene flame against water-cooled silicon substrates. High quality diamond films about 20 um thick can be achieved by scanning the flame at a speed of about 0.2 mm per minute. The as-deposited films exhibit high electrical resistivity exceeding 1014Ωcm. Current voltage measurement shows the trap-dominated current conduction characteristics similar to that for dehydrogenated diamond films deposited by methane/hydrogen plasmas.