Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 31, Issue 1, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202007232
Keywords
artificial synapse; hypersensitivity; MXene; redox behavior; synaptic plasticity
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Funding
- Tianjin Science Foundation for Distinguished Young Scholars [19JCJQJC61000]
- Guangdong Key RD Project [2018B030338001]
- Hundred Young Academic Leaders Program of Nankai University [2122018218]
- Natural Science Foundation of Tianjin [18JCYBJC16000]
- 111 Project [B16027]
- International Cooperation Base [2016D01025]
- Tianjin International Joint Research and Development Center
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The MXene artificial synapse achieves a world-record power consumption for two-terminal synaptic devices and can respond effectively to ultra-small stimuli. It also demonstrates potential applications such as dendritic integration and memory enhancement.
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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