Supramolecular organization of pi-conjugated molecules monitored by single-walled carbon nanotubes - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Nanophotonics Année : 2016

Supramolecular organization of pi-conjugated molecules monitored by single-walled carbon nanotubes

Laurent Alvarez
  • Fonction : Auteur
  • PersonId : 938846
Anouar Belhboub
  • Fonction : Auteur
  • PersonId : 983022
Rozenn Le Parc
  • Fonction : Auteur
  • PersonId : 905331
Raymond Aznar
  • Fonction : Auteur
  • PersonId : 881950
Patrick Hermet
  • Fonction : Auteur
  • PersonId : 905332
Jean-Louis Bantignies
  • Fonction : Auteur
  • PersonId : 841455

Résumé

Photo-active pi-conjugated molecules (quaterthiophene and phthalocyanine) are either encapsulated into the hollow core of single-walled carbon nanotubes or non-covalently stacked at their outer surface in order to elaborate hybrid nano-systems with new physical properties, providing practical routes to fit different requirements for potential applications. In this study, we are interested in the relationship between the structure and the opto-electronic properties. The structural properties are investigated mainly by x-ray diffraction and/or Transmission Electron Microscopy and Raman spectroscopy. We evidence that the supramolecular organizations of confined quaterthiophenes depend on the nanocontainer size whereas phthalocyanine encapsulation leads the formation of a 1D-phase for which the angle between the molecule ring and the nanotube axis is close to 32°. Confined phthalocyanine molecules display Raman spectra hardly altered with respect to the bulk phase, suggesting a rather weak interaction with the tubes. In contrast, the vibrational properties of the molecules stacked at the outer surface of tubes display important modifications. We assume a significant curvature of the phthalocyanine induced by the interaction with the tube walls and a change of the central atom position within the molecular ring, in good agreement with our DFT calculations.
Fichier non déposé

Dates et versions

hal-01325319 , version 1 (02-06-2016)

Identifiants

Citer

Laurent Alvarez, Yann Almadori, Anouar Belhboub, Rozenn Le Parc, Raymond Aznar, et al.. Supramolecular organization of pi-conjugated molecules monitored by single-walled carbon nanotubes. Journal of Nanophotonics, 2016, 10 (1), pp.012514. ⟨10.1117/1.JNP.10.012514⟩. ⟨hal-01325319⟩
548 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More