Fig. 3From: SnSe2 Field-Effect Transistor with High On/Off Ratio and Polarity-Switchable PhotoconductivityTime dependence of the photoresponse of SnSe2 FET biased at Vsdâ=â5âmV when applied at different negative back gating voltages Vbg (a), negative top gating voltages Vtg (b), positive back gating voltages Vbg (c), and positive top gating voltages Vtg (d)Back to article page