690304.fig.002a
(a)
690304.fig.002b
(b)
690304.fig.002c
(c)
690304.fig.002d
(d)
690304.fig.002e
(e)
690304.fig.002f
(f)
Figure 2: Raman spectra of SWNTs grown with Pt catalysts under various ethanol pressures at (a, b) 700°C, (c, d) 450°C, and (e, f) 400°C. (a, c, e) RBM and (b, d, f) high frequency regions in the Raman spectra are shown. The excitation wavelength was 785 nm.