Accurate determination of electronic transition energy of carbon nanotubes from the resonant behavior of radial breathing modes and their overtones
利用径向呼吸模及其倍频模的共振特性精确测定单壁碳纳米管的电子跃迁能量

The resonant Raman behavior of the radial breathing modes are very useful to analyze the electronic property of carbon nanotubes. We investigated the resonant behaviors of Stokes and anti-Stokes radial breathing mode and its overtone of a metallic nanotube, and show how to accurately determine the electronic transition energy of carbon nanotubes from radial breathing modes and their overtones. Based on the present results, the previously reported resonant Raman behavior of the radial breathing modes of SWNT bundles can be interpreted very well.