Fig. 3From: Simultaneous synthesis of nanodiamonds and graphene via plasma enhanced chemical vapor deposition (MW PE-CVD) on copperSubstrate temperature as a function of the pressure at different methane concentrations. The substrate temperature for different methane concentrations is plotted as a function of the process pressure two different power laws can be identified by fitting the two regimes in a log/log-plot. The vertical dashed lines indicate the approximate transition region between the two regimesBack to article page