Carbon Nanotube | Diameter | Calculation from RBM Wavenumber
- RBM (Radial Breathing Mode): 100 to 300 cm-1, vibration at which the nanotube diameter contracts and expands
- D-band: vicinity of 1350 cm-1, defect-derived peak
- G-band: vicinity of 1590 cm-1, in-plane vibration of graphite
D (nm) = 248/ω = 248/184 = 1.3 (nm)
Whereas Raman spectroscopy focuses on average values, SPM (Scanning Probe Microscopy) allows each diameter to be individually viewed.
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