Fig. 4: Chirality of luminescent quantum defects. | Nature Communications

Fig. 4: Chirality of luminescent quantum defects.

From: Circular dichroism of quantum defects in carbon nanotubes created by photocatalytic oxygen functionalization

Fig. 4

a CD and absorbance spectra of pristine (6,5) and (11,−5) SWCNT enantiomers in the visible spectral region. b CD and absorbance spectra of pristine SWCNT enantiomers in the NIR spectral region (inset with front view of helically chiral SWCNT enantiomers). c CD and absorbance spectra of oxygen-functionalized SWCNT enantiomers in the NIR spectral region, demonstrating CD of E11* defects. d PL spectra of oxygen-functionalized SWCNT dispersions in (c). e Schematic illustration of the reduction in exciton size by a factor of ≈ 2 upon confinement of the free exciton at the oxygen defect site as determined from the ratio of the respective CDnorm values. Source data are provided as a Source Data file.

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