Raman Spectroscopy Study of the Doping Effect of the Encapsulated Iron, Cobalt, and Nickel Bromides on Single-Walled Carbon Nanotubes

Figure 3

The relative intensity of the RBM components (C 1 and C 2) (a), the shift of the G-band components (G⁻, and ), and the relative intensity of the G⁻-component (b) in the Raman spectra of the pristine SWCNTs, NiBr₂@SWCNT, CoBr₂@SWCNT, and FeBr₂@SWCNT samples, acquired at a laser energy of 1.58 eV.

(a) RBM-band X@SWCNT

(b) G-band X@SWCNT