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Article Dans Une Revue Journal of Physical Chemistry C Année : 2014

Chromophore Ordering by Confinement into Carbon Nanotubes

Résumé

We report an experimental study on the confinement of oligothiophene derivatives into single-walled carbon nanotubes over a large range of diameter (from 0.68 to 1.93 nm). We evidence by means of Raman spectroscopy and transmission electron microscopy that the supramolecular organizations of the confined oligothiophenes depend on the nanocontainer size. The Raman Radial Breathing Mode frequency is shown to be monitored by both the number of confined molecules into a nanotube section and the competition between oligothiophene/oligothiophene and oligothiophene/tube wall interactions. We finally propose simple Raman criteria to characterize oligothiophene supramolecular organization at the nanoscale.
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Dates et versions

hal-01078525 , version 1 (29-10-2014)

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Y Almadori, L Alvarez, R Le Parc, R Aznar, F Fossard, et al.. Chromophore Ordering by Confinement into Carbon Nanotubes. Journal of Physical Chemistry C, 2014, 118, pp.19462 - 19468. ⟨10.1021/jp505804d⟩. ⟨hal-01078525⟩
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