Figure 3: SERS of monolayer MoS2 at room temperature.
From: Surface enhanced Raman scattering of monolayer MX2 with metallic nano particles
(a) Raman spectra of monolayer MoS2 with (Red) and without (Black) 5 nm nominally thick Ag NPs on top. Arrows indicate the splitting of the 
and 
modes. (b) Optical image of MoS2 with and without Ag NPs on top. (c) 2D distribution of Raman intensity corresponding to the rectangle in Fig. 3b.
