Artificial synapses based on biopolymer electrolyte-coupled SnO2 nanowire transistors

作者:Gou, Guangyang; Sun, Jia*; Qian, Chuan; He, Yinke; Kong, Ling-an; Fu, Yan; Dai, Guozhang*; Yang, Junliang; Gao, Yongli
来源:Journal of Materials Chemistry C, 2016, 4(47): 11110-11117.
DOI:10.1039/c6tc03731c

摘要

The fabrication of biologically inspired solid-state devices has attracted tremendous attention for decades, and the hardware implementation of artificial synapses using individual ionic/electronic hybrid devices is very important for neuromorphic applications. Herein, electric double-layer (EDL) synaptic transistors coupled by proton neurotransmitters with a multiple in-plane gate structure were successfully fabricated using SnO2 nanowires. Not only the important synaptic functions were mimicked in these devices, but also the synaptic behaviors can be modulated over a dynamic range via the multi terminal regulation of synaptic inputs. Furthermore, a light source was used to illuminate the SnO2 nanowire synaptic transistors, which were used as the light-modulating terminals. The observed neuromorphic functions were also dynamically modulated via the light density. These excellent nanoscale synaptic transistors may find significant applications in synaptic electronics.