Optical circular dichroism of single-wall carbon nanotubes
A. Sanchez-Castillo, C. E. Roman-Velazquez, C. Noguez
TL;DR
This paper presents a theoretical calculation of the circular dichroism spectra of single-wall carbon nanotubes, enabling differentiation based on chirality and diameter, and supporting experimental characterization.
Contribution
It provides the first theoretical analysis linking CD spectra features to nanotube chirality and diameter, aiding experimental identification.
Findings
CD spectra distinguish nanotube chirality and diameter
Theoretical support for experimental chirality measurement
Facilitates future experimental studies on nanotube characterization
Abstract
The circular dichroism (CD) spectra of single-wall carbon nanotubes are calculated using a dipole approximation. The calculated CD spectra show features that allow us to distinguish between nanotubes with different angles of chirality, and diameters. These results provide theoretical support for the quantification of chirality and its measurement, using the CD lineshapes of chiral nanotubes. It is expected that this information would be useful to motivate further experimental studies.
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