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Communication Dans Un Congrès Année : 2009

Sorting of single-walled carbon nanotubes by amphiphiles molecules adsorption studied by resonant Raman excitation profile

Ariete Righi
  • Fonction : Auteur
Indhira O. Maciel
  • Fonction : Auteur
Marcos A. Pimenta
  • Fonction : Auteur
Renaud Marquis
  • Fonction : Auteur
Stephane Meunier
  • Fonction : Auteur

Résumé

Adsorption of specifically designed polyaromatic amphiphiles were used to sort HjPCo single-walled carbon nanotubes (SWNTs) with different helicities. The sorting is investigated by resonant Raman excitation profiles. Chiral indexes (n and m) of SWNTs present in our samples are determined by fitting the Raman peaks observed in the radial breathing modes region (RBM). Scanning over an excitation energy range between 2 and 2.2 eV with a 0.01 eV step allows to investigate mainly two families of metallic nanotubes (2n + m = 24 and 2n + m = 27). The transition energies of nanotubes measured from the Raman spectra differ from the calculated ones, leading to useful corrections of the Kataura plot. The results also display significant differences between the sorted and the reference samples, meaning that discrimination between SWNTs of different properties is possible. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Dates et versions

hal-00512694 , version 1 (31-08-2010)

Identifiants

  • HAL Id : hal-00512694 , version 1

Citer

Laurent Alvarez, Ariete Righi, Indhira O. Maciel, Marcos A. Pimenta, Thierry Michel, et al.. Sorting of single-walled carbon nanotubes by amphiphiles molecules adsorption studied by resonant Raman excitation profile. 23rd Winterschool on Electronic Properties of Novel Materials, Mar 2009, Kirchberg (GERMANY), France. pp.2444-2447. ⟨hal-00512694⟩
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