Laterally Coupled Synaptic Transistors Gated by Proton Conducting Sodium Alginate Films

Electronic implementation of biological synapses with essential plasticity and computing functions has been paid world-wide attentions. Here, laterally coupled indium-zinc oxide (IZO)-based synaptic transistors gated by solution-processed sodium alginate proton conducting electrolyte films are fabricated at room temperature. Synaptic behaviors and functions, including paired-pulse facilitation, high-pass filtering, and dendritic integration, are experimentally mimicked. Proton lateral migration-induced electric-double-layer electrostatic modulation is of great importance for such emulation. Such IZO-based synaptic transistors provide an interesting approach for synaptic electronics and neuromorphic systems.