Figure 5
From: Efficient Closed-loop Maximization of Carbon Nanotube Growth Rate using Bayesian Optimization
(a–d) Growth temperature, total pressure, and partial pressures of ethylene, hydrogen and water vapor over the two BO campaigns, BO-1 (bottom panel) and BO-2 (top panel). The seed and planned data points are shown in green and red, respectively. The black traces are the calculated central moving averages (13 datum points), which show the trend in the parameters as the experiments progressed. (f) Histogram of CNT diameters calculated from analysis of Raman spectral maps. The data were collected from growth experiments corresponding to high growth rates in BO-1 and BO-2. (g) Representative Raman spectrum (excitation at 514.5 nm) showing the low frequency RBM and D and G bands from an individual CNT.
