The Polymer Society of Korea

Abstract

Electrolyte-gated synaptic transistors (EGSTs) are promising neuromorphic devices in which ion transport and retention govern synaptic weight modulation. However, the relationship between electrolyte ion characteristics and synaptic retention remains insufficiently understood, and electrolyte-based design strategies are still limited. Here, we investigate the role of ionic charge asymmetry in regulating ion retention and synaptic behavior in EGSTs. By systematically tuning ionic structures, we observe distinct differences in ion relaxation and retention within organic semiconductor channels.