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Enhancing the Infrared Response of Carbon Nanotubes From Oligo-Quaterthiophene Interactions

Abstract : Infrared response on a carbon nanotube is weak because this homonuclear allotrope of carbon does not bear permanent dipoles. Here, we report the discovery of an exaltation of the infrared absorption response in single-walled carbon nanotubes from dye molecule interactions. A study performed on dimethylquaterthiophene confined into the hollow core of single-walled carbon nanotubes or π-stacked at the outer surface of the latter leads to a symmetry breaking, allowing us to probe interactions between both subsystems. The nature of these interactions is discussed taking into account the tube diameter. This new phenomenon opens a new route to detect weak vibrations thanks to a confinement effect.
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https://hal.archives-ouvertes.fr/hal-01421543
Contributor : Patrick Hermet <>
Submitted on : Thursday, December 22, 2016 - 2:49:00 PM
Last modification on : Monday, February 10, 2020 - 6:13:58 PM

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A Belhboub, Patrick Hermet, Laurent Alvarez, Rozenn Le Parc, Stéphane Rols, et al.. Enhancing the Infrared Response of Carbon Nanotubes From Oligo-Quaterthiophene Interactions. Journal of Physical Chemistry C, American Chemical Society, 2016, 120 (50), pp.28802-28807. ⟨10.1021/acs.jpcc.6b09329⟩. ⟨hal-01421543⟩

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