Charge transfer evidence between carbon nanotubes and encapsulated conjugated oligomers

L. Alvarez, Y. Almadori, R. Arenal, R. Babaa, T. Michel, R. Le Parc, J. L. Bantignies, B. Jousselme, S. Palacin, P. Hermet, J. L. Sauvajol

Research output: Contribution to journalArticle

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Abstract

A hybrid system consisting of quaterthiophene derivative inserted into carbon nanotubes is studied. Encapsulation efficiency of the conjugated oligomers in the hollow core of nanotubes is investigated by transmission electron microscopy and spatial-resolved electron energy loss spectroscopy. Infrared spectroscopy showed evidence of a significant positive charge transfer on the inserted oligothiophene. Raman spectra display different behaviors depending on the excitation energy and correlated to the quaterthiophene optical absorption energy. At high excitation wavelength (far from the oligomer resonance), radial breathing modes exhibit a significant upshift consistent with an encapsulation effect. At low excitation wavelength (close to the oligomer resonance), both the G-band shift and the low-frequency modes vanishing suggest a significant charge transfer between the quaterthiophene and the nanotubes.

Original languageEnglish
Pages (from-to)11898-11905
Number of pages8
JournalJournal of Physical Chemistry C
Volume115
Issue number24
DOIs
Publication statusPublished - Jun 23 2011
Externally publishedYes

Fingerprint

Carbon Nanotubes
oligomers
Oligomers
Charge transfer
Carbon nanotubes
carbon nanotubes
charge transfer
Encapsulation
Nanotubes
nanotubes
excitation
Wavelength
Excitation energy
Electron energy loss spectroscopy
breathing
Hybrid systems
wavelengths
Light absorption
Raman scattering
Infrared spectroscopy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Alvarez, L., Almadori, Y., Arenal, R., Babaa, R., Michel, T., Le Parc, R., ... Sauvajol, J. L. (2011). Charge transfer evidence between carbon nanotubes and encapsulated conjugated oligomers. Journal of Physical Chemistry C, 115(24), 11898-11905. https://doi.org/10.1021/jp1121678

Charge transfer evidence between carbon nanotubes and encapsulated conjugated oligomers. / Alvarez, L.; Almadori, Y.; Arenal, R.; Babaa, R.; Michel, T.; Le Parc, R.; Bantignies, J. L.; Jousselme, B.; Palacin, S.; Hermet, P.; Sauvajol, J. L.

In: Journal of Physical Chemistry C, Vol. 115, No. 24, 23.06.2011, p. 11898-11905.

Research output: Contribution to journalArticle

Alvarez, L, Almadori, Y, Arenal, R, Babaa, R, Michel, T, Le Parc, R, Bantignies, JL, Jousselme, B, Palacin, S, Hermet, P & Sauvajol, JL 2011, 'Charge transfer evidence between carbon nanotubes and encapsulated conjugated oligomers', Journal of Physical Chemistry C, vol. 115, no. 24, pp. 11898-11905. https://doi.org/10.1021/jp1121678
Alvarez, L. ; Almadori, Y. ; Arenal, R. ; Babaa, R. ; Michel, T. ; Le Parc, R. ; Bantignies, J. L. ; Jousselme, B. ; Palacin, S. ; Hermet, P. ; Sauvajol, J. L. / Charge transfer evidence between carbon nanotubes and encapsulated conjugated oligomers. In: Journal of Physical Chemistry C. 2011 ; Vol. 115, No. 24. pp. 11898-11905.
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