摘要
多级痛觉感知对于生物避免外界伤害刺激具有十分重要的意义。本工作以海藻酸钠生物聚合物作为离子耦合栅介质,成功制备了5×5无结痛觉感知晶体管阵列。该器件能够在低电压下(2 V)正常工作,且具有较大的电流开关比(>10^(4))以及开态电流(>10μA)。这种器件不仅能模拟突触的重要功能,如兴奋性突触后电流、双脉冲易化、动态滤波等,而且还成功模拟了痛觉神经网络的多级空间感知敏化特性。构建该网络系统为下一代神经形态类脑系统应用提供了新的途径。
Multistage pain perception is of great significance for surviving the outside harmful stimuli for organisms.In this work,using a sodium alginate biopolymer electrolyte as neurotransmitter layer,a 5×5 array of junctionless transistoris successfully fabricated for pain perception.The device operates well at low voltage(2 V)with a large current on-off ratio(>10^(4))and on-state current(>10μA).This coplanar-gate array can not only emulate the important functions of synapses,such as excitatory postsynaptic current,paired-pulse facilitation,and dynamic filtering,but also successfully mimic pain-perception and sensitization abilities of the artificial nociceptor network.Furthermore,this work also successfully emulates the multistage spatio-temporal sensitization in the nociceptor network.Construction of this kind of network system provides a new way for the application of the next-generation neuromorphic brain-like system.
作者
李彦冉
谢叮咚
蒋杰
LI Yanran;XIE Dingdong;JIANG Jie(Hunan Key Laboratory of Nanophotonics and Devices,School of Physics and Electronics,Central South University,Changsha 410083,China)
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2023年第4期429-436,共8页
Journal of Inorganic Materials
基金
国家自然科学基金(52172169)。
关键词
氧化物半导体
晶体管阵列
痛觉神经网络
时空致敏
oxide semiconductor
transistor array
nociceptor network
spatio-temporal sensitization
