Figure 4
From: Graphene wrinkling induced by monodisperse nanoparticles: facile control and quantification
Correlation plot of the Raman shift, ω of the principal Raman modes in 1-LG@NPs samples.
The ωG1, ωG’1 and ωG2, ωG’2 correlations are distributed in different areas of the plot suggesting different level of strain and doping with respect to the character of the 1-LG, which is either in contact with the substrate and shows higher doping and lower strain level (G1, G’1) or forms a wrinkle (G2, G’2) resulting in lower doping but larger tension. The dashed grey lines with intersection at P0 (1582, 2637) cm−1 correspond to the border lines for zero doping and biaxial strain with the slope of 2.45 and 0.7, respectively. The thin grey lines represent a spread of the iso-doping line of the biaxial strain with the border values of the slope found in literature (2.25–2.8).
