Figure 1

(a) Sketch of the GC-FET detector structure and the band diagrams of the GC-FET with \(\Delta _C -\mu _D = \Delta _M\) at (b) \(V_G =0\) (BL flat band condition) and \({{\overline{j}}} = 0\), and (c) \(V_G > 0\) with \(\Delta _C - \mu < \Delta _M\) and \(\Delta _V+\mu > \Delta _M\), hence the thermionic electron current density \({{\overline{j}}} > 0\) (the hole current is negligible).