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The influence of non-diamond carbon in diamond films on the spatial distributions of emission sites was investigated, and consequently the field emission mechanism was discussed. It was confirmed that when increasing the positive substrate bias or the CH 4 /H 2 concentration ratio, the non-diamond carbon content in the resulting films was markedly increased and the surface morphologies...
By introducing positive substrate bias, ranging from 0 to 200 V, to the substrate during the growing procedure of diamond at 1, 2, and 3% CH4 concentration, we have investigated the effect of electron bombardment on modification of the structural property and the surface morphology of diamond films, and consequently the field emission properties. When increasing the bias voltage for each CH4 concentration,...
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