Figure 2: AFM and SEM characterization of SWCNTs before and after VPE.
From: Chirality-controlled synthesis of single-wall carbon nanotubes using vapour-phase epitaxy
(a,b) AFM images of (7, 6) nanotubes before and after VPE using ethanol on quartz substrates. The scale bars in a and b are 1 μm. (c,d) Length distribution of the (7, 6) nanotubes before and after VPE. (e,f) Comparison of (7, 6) nanotubes cloned on quartz and Si/SiO2 substrates. (g) An SEM image showing (7, 6) nanotubes cloned on the quartz substrate using methane. (h,i) SEM images of (6, 5) nanotubes cloned on quartz substrates using methane and ethanol, respectively. (j,k) SEM images of (7, 7) nanotube cloned on quartz and Si/SiO2 substrates. Scales bars, 50 μm for (e,f) and j, 30 μm for (g,h) and i, and 10 μm for k.
