Skip to main content
. 2021 Feb 17;7(8):eabe0084. doi: 10.1126/sciadv.abe0084

Fig. 2. Separation of single-chirality zigzag and near-zigzag SWCNTs.

Fig. 2

(A) Schematic diagram of the experimental scheme for separating single-chirality zigzag and near-zigzag SWCNTs through successive separations by diameter and chiral angle. (B) Optical absorption spectra of the SWCNTs separated by diameter at different DOC concentrations with fixed 0.5 wt % SC and 1.0 wt % SDS. (C) Optical absorption spectra of the nanotubes separated by chiral angle in the second step. In each spectral pattern, the top spectrum corresponds to one of the first separated SWCNT fractions eluted at different DOC concentrations, and the lower spectra are the optical absorption spectra of the corresponding second separated single-chirality fractions.