Fig. 5From: Bias-dependent photoresponsivity of multi-layer MoS2 phototransistorsEnergy band diagram of multi-layer MoS2 phototransistor under illumination at a low-drain bias in the OFF (V GS < V th) state (a) and a high-drain bias in the OFF state (b). A low-drain bias in the ON (V GS > V th) state (c) and a high-drain bias in the ON state (d)Back to article page