Figure 2
From: Defect-Engineered Heat Transport in Graphene: A Route to High Efficient Thermal Rectification
(a) Schematic of the experiment, where graphene film is covered on the 50 nm-gold-coated silicon nitride membrane with a 3.0 μm diameter hole. Inset is Raman mapping of the intensities of G peak, scale bar is 1 μm. (b) Raman spectra of monolayer defective graphene after oxygen plasma irradiation. The LD stands for inter-defect distance in graphene. (c) Raman spectra of oxygen plasma treated graphene under different absorbed laser power. (d) Thermal conductivities of oxygen plasma treated graphene with different defect concentration. The inset is the G peak frequency shift as a function of the absorbed laser power.
