Synaptic Computation Demonstrated in a Two-Synapse Network Based on Top-Gate Electric-Double-Layer Synaptic Transistors

In this letter, a two-synapse network with synaptic computation function is demonstrated. Solid-state electric-double-layer indium-zinc oxide-based synaptic transistors gated by silicon oxide electrolyte are used as artificial synapses. The short-term synaptic plasticity of the synaptic transistors is utilized to achieve high-frequency filter, processing frequency coding spike stimulus. The filtering characteristics of one synapse are controlled by the other one. Furthermore, we conducted synaptic computation in the two-synapse network, which demonstrates how synaptic transistors perform computational functions in neural networks.