Solid‐State Electrolyte Gate Transistor with Ion Doping for Biosignal Classification of Neuromorphic Computing



Wang, Qinan, Zhao, Tianshi, Zhao, Chun, Liu, Wen, Yang, Li, Liu, Yina, Sheng, Dian, Xu, Rongxuan, Ge, Yutong, Tu, Xin ORCID: 0000-0002-6376-0897
et al (show 2 more authors) (2022) Solid‐State Electrolyte Gate Transistor with Ion Doping for Biosignal Classification of Neuromorphic Computing. Advanced Electronic Materials, 8 (7). p. 2101260.

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Abstract

<jats:title>Abstract</jats:title><jats:p>As the core component of an intelligent neuromorphic computer system, reliable synaptic devices process vast amounts of data with high computing speed and low energy consumption. In this work, the ion‐doped eco‐friendly solution‐processed indium oxide (InO<jats:sub>x</jats:sub>)/aluminum oxide (AlO<jats:sub>x</jats:sub>) electrolyte gate transistors (EGTs) with typical and reliable synaptic behavior are proposed. The lithium ions doped into the AlO<jats:sub>x</jats:sub> solid‐state layer to facilitate the generation of electrical double layers and doped into InO<jats:sub>x</jats:sub> to improve the stability of long‐term potentiation/depression cyclic update and enhance the synaptic plasticity. Finally, an artificial neural network simulator is well designed to electrocardiogram signal recognition based on the <jats:italic>G</jats:italic><jats:sub>max</jats:sub>/<jats:italic>G</jats:italic><jats:sub>min</jats:sub> ratio and nonlinearity of weight update curve. According to the results, the device possesses tremendous potential for biosignal prediction and neural intervention. Moreover, for the first time, the recognition accuracy of the abnormality of the cardiovascular can reach over 94.8% obtained from the confusion matrix. Consequently, this research article presents a stable and robust neuromorphic device for biosignal recognition based on solid‐state EGTs via the synaptic long‐term plasticity.</jats:p>

Item Type: Article
Uncontrolled Keywords: in-memory computing, neuromorphic computing, recognition of image and ECG, synaptic transistor
Divisions: Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 19 Apr 2022 15:46
Last Modified: 04 Sep 2023 03:11
DOI: 10.1002/aelm.202101260
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3153226