Index assignment of a carbon nanotube rope using tip-enhanced Raman spectroscopy

We used tip‐enhanced Raman spectroscopy to study the diameter‐dependent Raman modes in a contacted carbon nanotube (CNT) rope. We show that with the near‐field tip enhancement a large number of nanotubes within a rope can be identified, even if the nanotube modes cannot be distinguished in the far‐f...

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Bibliographic Details
Published in:Physica status solidi. B. Basic research 2011-11, Vol.248 (11), p.2577-2580
Main Authors: Goß, Karin, Peica, Niculina, Thomsen, Christian, Maultzsch, Janina, Schneider, Claus M., Meyer, Carola
Format: Article
Language:English
Subjects:
carbon nanotubes
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Nanotubes
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
Physics
Raman spectroscopy
TERS
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Summary:We used tip‐enhanced Raman spectroscopy to study the diameter‐dependent Raman modes in a contacted carbon nanotube (CNT) rope. We show that with the near‐field tip enhancement a large number of nanotubes within a rope can be identified, even if the nanotube modes cannot be distinguished in the far‐field signal. Several metallic and semiconducting nanotubes can be identified and assigned to nanotube families. Additionally, we provide a tentative chiral index assignment.
ISSN:0370-1972
1521-3951
DOI:10.1002/pssb.201100161