SWNT Length 1-5 mkm, for shorted SWNT 200-500 nm.
SWNT Diametr 1.2-1.4 nm

You could see

1) Raman spectra

2) Lorenzian fitting showing diameters distribution

3) Optic spectrum UV-viz-NIR (SWNT-COOH (0.25 g/L) aqueous suspension with 0.05%
cetyltrimethylammonium bromide (CTAB).)

4) Thermogravimetry

5) Thermogravimetry with Gauss fit

6) TEM photo 50-60%

7) TEM photo 70-80%

8) SEM photo of DWNT