Figure 3. Temperature dependence of optical properties of liquid phase exfoliated MoS₂ films.

(a) The photo response of the device measured (applied voltage 1 V, λ = 633 nm, P = 575 μW) at several temperatures is presented. (b) Dependence of photocurrent with respect to low light intensity on the same device (applied voltage 0.5 V, λ = 633 nm) (c) Temperature dependence of power exponent γ under low light condition. (d) Schematic representation of the movement of Steady State Fermi Levels with increases light intensity.