Figure 1

Optical microscope images of monolayer MoS2—(a) As grown MoS2 (triangular shaped), (b) MoS2 channels of different dimensions after processing (rectangular shaped) and (c) MoS2 device with permalloy (Py) electrodes. (d) Raman spectra of monolayer MoS2 performed with laser light of wavelength of 488 nm. (e) The schematic of a FET device and measurement configuration for two-probe source-drain current-voltage (IDS-VDS) curves.