Raman spectroscopy of single-wall carbon nanotubes and graphite irradiated by γ rays
- 15 July 2005
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 98 (2), 024311
- https://doi.org/10.1063/1.1984080
Abstract
Graphite and single-wall carbon nanotubes irradiated by rays of energy of 1.3 MeV were investigated by Raman spectroscopy. Irradiation generates defects in the lattice as confirmed by the increase of the intensity of the defect-induced line in both materials. On the other hand, the intensity of the radial breathing mode of nanotubes is lowered. The intensity of the line does not change for graphite but increases for carbon nanotubes. For the latter, this behavior cannot be explained by the defect-mediated double-resonance mechanism. Softening of the selection rule is suggested as a way to explain the results.
Keywords
This publication has 22 references indexed in Scilit:
- Effect of electron irradiation on the electrical properties of fibers of aligned single-walled carbon nanotubesApplied Physics Letters, 2003
- Proton Irradiation of Carbon NanotubesNano Letters, 2003
- Irradiation of Single-Walled Carbon Nanotubes with High-Energy ProtonsNano Letters, 2002
- Production of defects in supported carbon nanotubes under ion irradiationPhysical Review B, 2002
- Formation of ion-irradiation-induced atomic-scale defects on walls of carbon nanotubesPhysical Review B, 2001
- Coalescence of Single-Walled Carbon NanotubesScience, 2000
- Irradiation effects in carbon nanostructuresReports on Progress in Physics, 1999
- Modification of multiwall carbon nanotubes by electron irradiation: An ESR studyPhysical Review B, 1999
- Surface Reconstructions and Dimensional Changes in Single-Walled Carbon NanotubesPhysical Review Letters, 1998
- Structural Modification of Single-Layer Carbon Nanotubes with an Electron BeamThe Journal of Physical Chemistry, 1996