Infrared-active phonons in carbon nanotubes

Article

关键词: SINGLE-WALL;    VIBRATIONAL-MODES;    RAMAN;    SPECTROSCOPY;   

DOI  :  10.1103/PhysRevB.74.195425

来源: SCIE

【 摘 要 】

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).

【 授权许可】

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