Coplanar Multigate MoS2 Electric-Double-Layer Transistors for Neuromorphic Visual Recognition

Spatial coordinate and visual orientation recognition in cortical cells play important roles in the visual system. Herein, spatiotemporally processed visual neurons are mimicked by a facile coplanar multigate two-dimensional (2D) MoS2 electric-double-layer transistor with proton-conducting poly­(vin...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2018-08, Vol.10 (31), p.25943-25948
Main Authors: Xie, Dingdong, Jiang, Jie, Hu, Wennan, He, Yongli, Yang, Junliang, He, Jun, Gao, Yongli, Wan, Qing
Format: Article
Language:English
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Summary:Spatial coordinate and visual orientation recognition in cortical cells play important roles in the visual system. Herein, spatiotemporally processed visual neurons are mimicked by a facile coplanar multigate two-dimensional (2D) MoS2 electric-double-layer transistor with proton-conducting poly­(vinyl alcohol) electrolytes as laterally coupled gate dielectrics. Fundamental neuromorphic behaviors, e.g., excitatory postsynaptic current and paired-pulse facilitation, were successfully mimicked. For the first time, a proof-of-principle artificial visual neural network system for mimicking spatiotemporal coordinate and orientation recognition was experimentally demonstrated in such devices. The experimental results provide a promising opportunity for adding intelligent spatiotemporally-processed functions in emerging brain-like neuromorphic nanoelectronics.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.8b07234