All oxide based flexible multi-folded invisible synapse as vision photo-receptor

Abstract All oxide-based transparent flexible memristor is prioritized for the potential application in artificially simulated biological optoelectronic synaptic devices. SnOx memristor with HfOx layer is found to enable a significant effect on synaptic properties. The memristor exhibits good reliab...

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Main Authors: Ping-Xing Chen, Debashis Panda, Tseung-Yuen Tseng
Format: Article
Language:English
Published: Nature Portfolio 2023-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-28505-3
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author Ping-Xing Chen
Debashis Panda
Tseung-Yuen Tseng
author_facet Ping-Xing Chen
Debashis Panda
Tseung-Yuen Tseng
author_sort Ping-Xing Chen
collection DOAJ
description Abstract All oxide-based transparent flexible memristor is prioritized for the potential application in artificially simulated biological optoelectronic synaptic devices. SnOx memristor with HfOx layer is found to enable a significant effect on synaptic properties. The memristor exhibits good reliability with long retention, 104 s, and high endurance, 104 cycles. The optimized 6 nm thick HfOx layer in SnOx-based memristor possesses the excellent synaptic properties of stable 350 epochs training, multi-level conductance (MLC) behaviour, and the nonlinearity of 1.53 and 1.46 for long-term potentiation and depression, respectively, and faster image recognition accuracy of 100% after 23 iterations. The maximum weight changes of -73.12 and 79.91% for the potentiation and depression of the synaptic device, respectively, are observed from the spike-timing-dependent plasticity (STDP) characteristics making it suitable for biological applications. The flexibility of the device on the PEN substrate is confirmed by the acceptable change of nonlinearities up to 4 mm bending. Such a synaptic device is expected to be used as a vision photo-receptor.
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spelling doaj.art-23652dbf62844459a1a12b3966bae73e2023-01-29T12:11:35ZengNature PortfolioScientific Reports2045-23222023-01-0113111410.1038/s41598-023-28505-3All oxide based flexible multi-folded invisible synapse as vision photo-receptorPing-Xing Chen0Debashis Panda1Tseung-Yuen Tseng2Institute of Electronics, National Yang-Ming Chiao Tung UniversityInstitute of Electronics, National Yang-Ming Chiao Tung UniversityInstitute of Electronics, National Yang-Ming Chiao Tung UniversityAbstract All oxide-based transparent flexible memristor is prioritized for the potential application in artificially simulated biological optoelectronic synaptic devices. SnOx memristor with HfOx layer is found to enable a significant effect on synaptic properties. The memristor exhibits good reliability with long retention, 104 s, and high endurance, 104 cycles. The optimized 6 nm thick HfOx layer in SnOx-based memristor possesses the excellent synaptic properties of stable 350 epochs training, multi-level conductance (MLC) behaviour, and the nonlinearity of 1.53 and 1.46 for long-term potentiation and depression, respectively, and faster image recognition accuracy of 100% after 23 iterations. The maximum weight changes of -73.12 and 79.91% for the potentiation and depression of the synaptic device, respectively, are observed from the spike-timing-dependent plasticity (STDP) characteristics making it suitable for biological applications. The flexibility of the device on the PEN substrate is confirmed by the acceptable change of nonlinearities up to 4 mm bending. Such a synaptic device is expected to be used as a vision photo-receptor.https://doi.org/10.1038/s41598-023-28505-3
spellingShingle Ping-Xing Chen
Debashis Panda
Tseung-Yuen Tseng
All oxide based flexible multi-folded invisible synapse as vision photo-receptor
Scientific Reports
title All oxide based flexible multi-folded invisible synapse as vision photo-receptor
title_full All oxide based flexible multi-folded invisible synapse as vision photo-receptor
title_fullStr All oxide based flexible multi-folded invisible synapse as vision photo-receptor
title_full_unstemmed All oxide based flexible multi-folded invisible synapse as vision photo-receptor
title_short All oxide based flexible multi-folded invisible synapse as vision photo-receptor
title_sort all oxide based flexible multi folded invisible synapse as vision photo receptor
url https://doi.org/10.1038/s41598-023-28505-3
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AT debashispanda alloxidebasedflexiblemultifoldedinvisiblesynapseasvisionphotoreceptor
AT tseungyuentseng alloxidebasedflexiblemultifoldedinvisiblesynapseasvisionphotoreceptor