Flexible multiterminal photoelectronic neurotransistors based on self‐assembled rubber semiconductors for spatiotemporal information processing

查看全文 作　　者：Yunchao [1,2]Xu;Gengming [1,2]Zhang;Wanrong [1,2]Liu;Chenxing [1,2]Jin;Yiling [1,2]Nie;Jia [1,2]Sun;Junliang [1,2]Yang 机构地区：[1]Hunan Key Laboratory for Super Microstructure and Ultrafast Process,School of Physics and Electronics,Central South University,Changsha,China;[2]Hunan Key Laboratory of Nanophotonics and Devices,School of Physics and Electronics,Central South University,Changsha,China 出　　处：《SmartMat》索引2023年第4卷第2期,共10页 基　　金：supported by the National Natural Science Foundation of China(Nos.61975241 and 52173192);the Huxiang Youth Talent Program of Hunan Province(No.2020RC3010);the Science and Technology Innovation Program of Hunan Province(No.2020RC4004);the Special Funding for the Construction of Innovative Provinces in Hunan Province(No.2020GK2024);the National Key Research and Development Program of China(No.2017YFA0206600);Fundamental Research Funds for the Central Universities of Central South University(No.1053320213517). 摘　　要：A significant step toward constructing high‐efficiency neuromorphic systems is the electronic emulation of advanced synaptic functions of the human brain.While previous studies have focused on mimicking the basic functions of synapses using single‐gate transistors,multigate transistors offer an opportunity to simulate more complex and advanced memory‐forming behaviors in biological synapses.In this study,a simple and general method is used to assemble rubber semiconductors into suspended two‐phase composite films that are transferred to the surface of the ion‐conducting membrane to fabricate flexible multiterminal photoelectronic neurotransistors.The suspended ion conductive film is used as the gate dielectrics and supporting substrate.The prepared devices exhibit excellent electrical stability and mechanical flexibility after being bent.Basic photoelectronic synaptic behavior and pulse‐dependent plasticity are emulated.Furthermore,the device realizes the spatiotemporally integrated electrical and optical stimuli to mimic spatiotemporal information processing.This study provides a promising direction for constructing more complex spiking neural networks and more powerful neuromorphic systems with brain‐like dynamic spatiotemporal processing functions. 关 键 词：ion‐conducting membrane multiterminal neuromorphic devices optoelectronic neurotransistors self‐assembly semiconductor spatiotemporal information processing