%0 Journal Article %T Infrared-active phonons in carbon nanotubes %+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN) %A Bantignies, Jean-Louis %A Sauvajol, Jean-Louis %A Rahmani, A. %A Flahaut, E. %< avec comité de lecture %Z LCVN:06-194 %@ 1098-0121 %J Physical Review B: Condensed Matter and Materials Physics (1998-2015) %I American Physical Society %V 74 %N n° 19 %P 195425-1-5 %8 2006 %D 2006 %R 10.1103/PhysRevB.74.195425 %K carbon nanotubes %K infrared spectra %K phonons %K aerogels %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles %X The aim of the present paper is to identify the main infrared vibrational features of carbon nanotubes. In this goal, infrared experiments have been performed on different well-characterized single-walled carbon nanotubes (SWCNTs) and double-walled carbon nanotubes (DWCNTs) as well as graphite and carbon aerogel. The comparison between the experimental spectra measured on these different samples allows us to identify the infrared-active modes of carbon nanotubes. In SWCNTs, the tangential modes are located around 1590 cm−1 and the radial mode around 860 cm−1. This latter mode vanishes in the infrared spectrum of DWCNTs. Finally, in the infrared spectra of all the carbon nanotubes investigated, a band around 1200 cm−1 is evidenced and assigned to the D-band (disorder-induced band). %G English %2 https://hal.science/hal-00514943/document %2 https://hal.science/hal-00514943/file/bantignies_2542.pdf %L hal-00514943 %U https://hal.science/hal-00514943 %~ CNRS %~ UNIV-MONTP2 %~ LCVN %~ UNIV-MONTPELLIER %~ UM1-UM2