%0 Journal Article
%T Charge Transfer Evidence between Carbon Nanotubes and Encapsulated Conjugated Oligomers
%+ Laboratoire Charles Coulomb (L2C)
%+ Laboratoire d'étude des microstructures [Châtillon] (LEM - ONERA - CNRS)
%+ Instituto de Nanociencia de Aragón [Saragoza, España] (INA)
%+ Laboratoire de Chimie des Surfaces et Interfaces (LCSI)
%+ Universiti Teknologi PETRONAS (UTP)
%A Alvarez, Laurent
%A Almadori, Yann
%A Arenal, Raul
%A Babaa, Moulay-Rachid
%A Michel, Thierry
%A Le Parc, Rozenn
%A Bantignies, Jean-Louis
%A Jousselme, Bruno
%A Palacin, Serge
%A Hermet, Patrick
%A Sauvajol, Jean-Louis
%< avec comité de lecture
%Z L2C:11-090
%@ 1932-7447
%J Journal of Physical Chemistry C
%I American Chemical Society
%V 115
%P 11898-11905
%8 2011
%D 2011
%R 10.1021/jp1121678
%K SPECTRA
%K RENORMALIZATION
%K RAMAN-SPECTROSCOPY
%K FUNCTIONALIZATION
%K END-CAPPED OLIGOTHIOPHENES
%K SERIES
%Z Chemical Sciences/Material chemistryJournal articles
%X 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
%G English
%2 https://cea.hal.science/cea-00960683/document
%2 https://cea.hal.science/cea-00960683/file/Alvarez_10.pdf
%L cea-00960683
%U https://cea.hal.science/cea-00960683
%~ CEA
%~ ONERA
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ LEM_UMR104
%~ GS-PHYSIQUE
%~ UM-2015-2021