Differences between ultrananocrystalline and nanocrystalline diamond growth: theoretical investigation of $C_{x}H_{y}$ species at diamond step edges University of Antwerp
The behavior of hydrocarbon species at step edges of diamond terraces is investigated by means of combined molecular dynamics−Metropolis Monte Carlo simulations. The results show that the formation of ballas-like diamond films (like UNCD) and well-faceted diamond films (like NCD) can be related to the gas phase concentrations of CxHy in a new manner: Species that have high concentrations above the growing UNCD films suppress the extension of ...