Thin film growth rate effects for primary ion beam deposited diamondlike carbon films

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Abstract
Diamondlike carbon (DLC) films were grown by primary ion beam deposition and the growth rates were measured for various beam energies, types of hydrocarbon gases and their ratio to Ar, and substrate materials. The growth rate had a linear dependence upon hydrocarbon content in the discharge chamber, and only small dependence on other parameters. For given deposition conditions a threshold in the atomic ratio of carbon to argon gas was identified below which films did not grow on fused silica substrate, but grew on Si substrate and on existing DLC films. Ion source deposition parameters and substrate material were found to affect the deposition threshold and film growth rates.

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