Fig. 1: Comparison of the biological synapse with the designed artificial synaptic device.
From: Optical synaptic devices with ultra-low power consumption for neuromorphic computing
a Schematic illustration of human visual sensory system. The right panel of figure describe the responses to biological spikes in the biological synapse. b Schematic structure of the artificial photonic synapse based on BP/CdS vdWs heterojunction. Upper panel: top-view scanning electron microscope (SEM) image of the device; scale bar, 5 μm. The light green strip is CdS, while the brown area indicates the BP flake. The right panel of figure describe the responses to optical spikes in the artificial synapse, Cr/Au (10 nm/50 nm) electrodes are only contact with BP
