[19a-Z34-1~11] FS.1 Focused Session "AI Electronics"

△ [19a-Z34-2] Creation of polymer wire synapse capable of forming long-term and short-term memory

〇Naruki Hagiwara¹, Shoma Sekizaki¹, Yuji Kuwahara¹, Tetsuya Asai², Megumi Akai-Kasaya^1,2 (1.Osaka Univ., 2.Hokkaido Univ.)

Keywords:synaptic de vice, conductive polymer, resistance change memory

Networks in the human brain are extremely complex and sophisticated. The abstract model of the human brain has been used in software development, specifically in artificial intelligence. Despite the remarkable outcomes achieved using artificial intelligence, the approach consumes a huge amount of computational resources. A possible solution to this issue is the development of processing circuits that physically resemble an artificial brain, which can offer low-energy loss and high-speed processing. This study demonstrated the synaptic functions of conductive polymer wires crosslinking arbitrary electrodes in solution. By controlling the conductance of the wires, synaptic functions such as long-term potentiation and short-term plasticity were achieved, which was similar to the manner in which a synapse changes the strength of its connections. This novel organic artificial synapse can be used to construct information processing circuits by wiring from scratch and learning efficiently in response to external stimuli.