Figure 5
From: High accuracy determination of the thermal properties of supported 2D materials
(a) An exemplary spectrum of the multilayer MoS2 consisting of two peaks, denoted as E2g (the left one) and A1g (the right one). (b) Optical image of 6-nm thick exfoliated multilayer MoS2 flake on the Si/SiO2 substrate – one of the examined samples. Dependence of the Raman A1g mode energy from (c) the temperature taken in the PL → 0 limit, (d) power of the laser beam illuminating the sample taken at T = 300 K and (e) distance of the thin film surface from the laser beam focus for seven laser power values (P = 1.08, 1.19, 1.29, 1.39, 1.48, 1.58 and 1.69 mW). Inset: derivative of the G mode energy with respect to the laser power.
