Figure 3From: In Situ Synthesis of Reduced Graphene Oxide and Gold Nanocomposites for Nanoelectronics and Biosensinga Raman spectra of rGO sheet ( black line ) and rGO-Au sheet ( red line ). b Raman map of rGO-Au nanocomposite constructed by integrating 1,500–1,700 cm-1 region (G band) of graphene Raman spectrum. c Raman map of the same area constructed by integrating from 1,100 to 1,200 cm-1 in which the Au nanoparticles are indicated by the bright dots.Back to article page