Confinement in single walled carbon nanotubes investigated by spectroscopic ellipsometry

Y. Battie (1) , Damien Jamon (2) , Jean‐sébastien Lauret (3) , Qingyuan Gu (4) , Maud Gicquel-Guézo (5) , A. En Naciri (1) , Annick Loiseau (6)

1 LCP-A2MC - Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes
2 LHC - Laboratoire Hubert Curien
3 LPQM - Laboratoire de Photonique Quantique et Moléculaire
4 INSA Rennes - Institut National des Sciences Appliquées - Rennes
5 FOTON - Fonctions Optiques pour les Technologies de l'informatiON
6 LEM - ONERA - CNRS - Laboratoire d'étude des microstructures [Châtillon]

Thick films of single walled carbon nanotubes (SWCNTs) with different diameter and chirality distributions are characterized by combining transmission electron microscopy and spectroscopic ellipsometry. The dependence of the dielectric function with the increase of the SWCNT diameter occurs with a drastic redshift of the S11, S22 and M11 transition energies. The transfer integral parameter γ0 of SWCNT is also evaluated and analyzed. We demonstrate that parts of the optical properties of SWCNTs are attributed to a one dimensional confinement effect.

Mots clés: Ellipsometry; Dielectric function; Carbon nanotube film; Confinement

Domaines: Matière Condensée [cond-mat]

Y. Battie, Damien Jamon, Jean‐sébastien Lauret, Qingyuan Gu, Maud Gicquel-Guézo, et al.. Confinement in single walled carbon nanotubes investigated by spectroscopic ellipsometry. Thin Solid Films, 2014, 6th International Conference on Spectroscopic Ellipsometry (ICSE-VI), 571 (3), pp.395-398. ⟨10.1016/j.tsf.2013.10.072⟩. ⟨hal-01391229⟩