Figure 1
From: Observation of negative differential resistance in mesoscopic graphene oxide devices
Illustration and optical images of fabricated devices, and Raman spectra. (a–c) Schematic of the fabricated devices. (d–e) Optical microscope image (the scale bar represents 4 µm) of the pre- and post-reduced device illustrating the color variation in the reduction process. (f) Schematic energy band diagram illustrating localized electronic states at the band edges; the energy gap between conduction and valence band edges depends on the molecular compositions and their configurations. (g) Raman spectra of GO and rGO. The inset shows the zoomed-in graph of the G peak.
