Figure 3.
Chemical composition and physical characterization of rGO films. (a) General survey XPS spectra of rGO films. r-SGO (blue), r-MGO (red), and r-LGO (black). (b–d) XPS C1s deconvolution spectra of r-LGO, r-MGO, and r-SGO, respectively. (e) Raman spectra of rGO films. (f) Correlation between C/O, ID/IG ratio, and various rGO films. All GO films were reduce using HI acid as reductant. Error bars represent standard error of mean (SEM), n = 3.