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Redox MXene Artificial Synapse with Bidirectional Plasticity and Hypersensitive Responsibility
Author(s) -
Wei Huanhuan,
Yu Haiyang,
Gong Jiangdong,
Ma Mingxue,
Han Hong,
Ni Yao,
Zhang Shuo,
Xu Wentao
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202007232
Subject(s) - materials science , synapse , emulation , nanotechnology , electronics , neuroscience , computer science , electrical engineering , biology , engineering , economics , economic growth
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.