Figure 2From: Photo-sensitivity of large area physical vapor deposited mono and bilayer MoS2 I-V characteristics under dark and 1.2 milli-Watts illumination for (a) mono-layer and (b) bi-layer MoS 2 devices. The corresponding values, when measured with electrodes at perpendicular (⊥) direction in ( c ) monolayer and ( d ) bilayer devices exhibit remarkable anisotropy in photo-sensitivity. Predominant nature of ohmic contact is seen for all the devices.Back to article page