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Lefrant, S., Baltog, I. & Baibarac, M. (2009) Optical advanced spectroscopic techniques for the study of nano-structured materials: Applications to carbon nanotubes. Synth. Met. 159 2173–2176.
Added by: Laurent Cournède (2016-03-10 21:41:23) |
| Type de référence: Article DOI: 10.1016/j.synthmet.2009.08.029 Numéro d'identification (ISBN etc.): 0379-6779 Clé BibTeX: Lefrant2009 Voir tous les détails bibliographiques  |
Catégories: PMN Mots-clés: carbon nanotubes, Non-linear phenomena, Optical techniques, Raman scattering, raman-spectroscopy, sers Créateurs: Baibarac, Baltog, Lefrant Collection: Synth. Met. |
Consultations : 6/442
Indice de consultation : 3% Indice de popularité : 0.75% |
| Résumé |
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In this paper, we present the anti-Stokes Raman scattering as a technique allowing investigations of materials at a nanoscale level. When the energy of the excitation light coincides with the energy of an electronic transition, a strong anti-Stokes Raman spectrum with respect to the prediction of the Maxwell-Boltzman (MB) law is regularly observed. Under a tight-focusing of the excitation light, the anti-Stokes Raman emission is reminiscent of Coherent anti-Stokes Raman Scattering (CARS). It has been detected on carbon nanotubes (CNTs), prototypes of nanometric materials, as well as on other compounds such as copper phthalocyanine (CuPc), poly(bithiophene) (PBTh), poly(3,4-ethylene dioxythiophene) (PEDOT), polyparaphenylene vinylene (PPV) layered as thin films on a metallic support in which are generated surface plasmons. We demonstrate that nanostructures by themselves can be of importance by generating non-linear phenomena that can be exploited for studying such materials and in particular carbon nanotubes. (C) 2009 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède |