1D-confinement of polyiodides inside single-wall carbon nanotubes Auteur(s): Chorro M., Kane G., Alvarez L., Cambedouzou J., Paineau E., Rossberg A., Kociak M., Aznar R., Pascarelli S., Launois P., Bantignies J.-L. (Article) Publié: Carbon, vol. 52 p.100-108 (2013) Texte intégral en Openaccess : Ref HAL: hal-00808165_v1 DOI: 10.1016/j.carbon.2012.09.010 WoS: 000314192700012 Exporter : BibTex | endNote 18 Citations Résumé: 1D-confinement of polyiodides inside single-wall carbon nanotubes (SWCNT) is investigated. Structural arrangement of iodine species as a function of the SWCNT diameters is studied. Evidence for long range one dimensional ordering of the iodine species is shown by X-ray and electron diffraction experiments independently of the tube diameter. The structure of the confined polyiodides is investigated by X-ray absorption spectroscopy. The confinement influences the local arrangement of the chains. Below a critical diameter Fc of 1 nm, long linear polyiodides are evidenced leading to a weaker charge transfer than for nanotube diameter above Fc. A shortening of the polyiodides is exhibited with the increase of the nanotube diameter leading to a more efficient charge transfer. This point reflects the 1D-confinement of the polyiodides inside the nanotubes. |