A Flexible Tribotronic Artificial Synapse with Bioinspired Neurosensory Behavior

查看全文 作　　者：Jianhua [1,2]Zeng;Junqing [1,3]Zhao;Tianzhao [1,3]Bu;Guoxu [1,3]Liu;Youchao [1,3]Qi;Han [1,2]Zhou;Sicheng [1,3]Dong;Chi [1,2,3]Zhang

机构地区：[1]CAS Center for Excellence in Nanoscience,Beijing Key Laboratory of Micro‑Nano Energy and Sensor,Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 101400,People’s Republic of China;[2]Center on Nanoenergy Research,School of Physical Science and Technology,Guangxi University,Nanning 530004,People’s Republic of China;[3]School of Nanoscience and Technology,University of Chinese Academy of Sciences,Beijing 100049,People’s Republic of China

出　　处：《Nano-Micro Letters》索引2023年第15卷第2期,共15页

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51922023,61874011);the China Postdoctoral Science Foundation(Grant No.2021M703159);Fundamental Research Funds for the Central Universities(Grant No.E1EG6804). 摘　　要：As key components of artificial afferent nervous systems,synaptic devices can mimic the physiological synaptic behaviors,which have attracted extensive attentions.Here,a flexible tribotronic artificial synapse(TAS)with bioinspired neurosensory behavior is developed.The triboelectric potential generated by the external contact electrification is used as the ion-gel-gate voltage of the organic thin film transistor,which can tune the carriers transport through the migration/accumulation of ions.The TAS successfully demonstrates a series of synaptic behaviors by external stimuli,such as excitatory postsynaptic current,paired-pulse facilitation,and the hierarchical memory process from sensory memory to short-term memory and long-term memory.Moreover,the synaptic behaviors remained stable under the strain condition with a bending radius of 20 mm,and the TAS still exhibits excellent durability after 1000 bending cycles.Finally,Pavlovian conditioning has been successfully mimicked by applying force and vibration as food and bell,respectively.This work demonstrates a bioinspired flexible artificial synapse that will help to facilitate the development of artificial afferent nervous systems,which is great significance to the practical application of artificial limbs,robotics,and bionics in future. 关键词：Flexible electronics Tribotronics Artificial synapses Contact electrification Neurosensory behavior

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A Flexible Tribotronic Artificial Synapse with Bioinspired Neurosensory Behavior

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