a Schematic diagram of the human visual ... b Optical image of the 28 × 28 device array. c 3D schematic diagram of the artificial synaptic device structure based on the MoS2 floating-gate device.

Double-gate field emitter arrays with on-chip focussing electrode, ... Schematic diagram of DC gun test setup. (b, c) Focussed beam image of the uncollimated (k col =0) ...