Redox MXene Artificial Synapse with Bidirectional Plasticity and Hypersensitive Responsibility |
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| Authors: | Huanhuan Wei Haiyang Yu Jiangdong Gong Mingxue Ma Hong Han Yao Ni Shuo Zhang Wentao Xu |
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| Affiliation: | Institute of Photoelectronic Thin Film Devices and Technology, College of Electronic Information and Optical Engineering, Key Laboratory of Optoelectronic Thin Film Devices and Technology of Tianjin, College of Electrical Information and Optical Engineering, National Institute for Advanced Materials, Nankai University, Tianjin, 300350 P. R. China |
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| Abstract: | Artificial synapses are key elements for the nervous system which is an emulation of sensory and motor neuron signal transmission. Here, the design and fabrication of redox-behavior the metal carbide nanosheets, termed MXene artificial synapse, which uses a highly-conductive MXene electrode, are reported. Benefiting from the special working mechanism of ion migration with adsorption and insertion, the device achieves world-record power consumption (460 fW) of two-terminal synaptic devices, and so far, the bidirectionally functioned synaptic device could effectively respond to ultra-small stimuli at an amplitude of ±80 mV, even exceeding that of a biological synapse. Potential applications have also been demonstrated, such as dendritic integration and memory enhancement. The special strategy and superior electrical characteristics of the bidirectionally functioned electronic device pave the way to high-power-efficiency brain-inspired electronics and artificial peripheral systems. |
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| Keywords: | artificial synapse hypersensitivity MXene redox behavior synaptic plasticity |
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