Alignment characterization of single-wall carbon nanotubes by Raman scattering |
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| Affiliation: | 1. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio (CONICET-UNRN), Mitre 630 5to A, Río Negro, San Carlos de Bariloche 8400, Argentina;2. Instituto de Investigaciones en Biodiversidad y Medioambiente (CONICET-UNComa), Quintral 1250, Río Negro, San Carlos de Bariloche 8400, Argentina;1. Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris Sud, F-91405 Orsay Cedex, France;2. CEA, IRAMIS, UMR-3685 NIMBE LEDNA, F 91191 Gif-sur-Yvette, France, CNRS, UMR-3685 NIMBE, F 91191 Gif-sur-Yvette, France;3. Synchrotron SOLEIL, L’Orme des merisiers, Saint Aubin, Gif-sur-Yvette FR91192, France;1. Department of Organic Chemistry, Biochemistry and Biotechnology, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland;2. Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, CB3 0FS Cambridge, United Kingdom;1. Service Chimie-Physique, Université libre de Bruxelles, Brussels, Belgium;2. Thermodynamics of Irreversible Phenomena, Université de Liège, Liège, Belgium |
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| Abstract: | A novel method for identifying the Raman modes of single-wall carbon nanotubes (SWNT) based on the symmetry of the vibration modes has been studied. The Raman intensity of each vibration mode varies with polarization direction, and the relationship can be expressed as analytical functions. This method avoids troublesome numerical calculation and easily gives clear relations between Raman intensity and polarization direction. In this way, one can distinguish each Raman-active mode of SWNT through the polarized Raman spectrum. |
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