Author/Authors :
Wei، نويسنده , , Jinquan and Jiang، نويسنده , , Bin and Zhang، نويسنده , , Xianfeng and Zhu، نويسنده , , Hongwei and Wu، نويسنده , , Dehai، نويسنده ,
Abstract :
Raman spectra were performed on the double-walled carbon nanotubes (DWNTs) at different Elaser of excitation. The interlayer distance of the DWNTs calculated from radial breathing mode (RBM) varies from 0.335 to 0.42 nm. The D-band of the carbon nanotubes can be expressed as ωD=ω0+26.5Elaser, where ω0 is about 1260 cm−1 for DWNTs, 1270 cm−1 for single-walled carbon nanotubes (SWNTs) and 1285 cm−1 for multi-walled carbon nanotubes (MWNTs), respectively.