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Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system
An optoelectronic synapse having a multispectral color-discriminating ability is an essential prerequisite to emulate the human retina for realizing a neuromorphic visual system. Several studies based on the three-terminal transistor architecture have shown its feasibility; however, its implementati...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10507016/ https://www.ncbi.nlm.nih.gov/pubmed/37723149 http://dx.doi.org/10.1038/s41467-023-41419-y |
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author | Lee, Jongmin Jeong, Bum Ho Kamaraj, Eswaran Kim, Dohyung Kim, Hakjun Park, Sanghyuk Park, Hui Joon |
author_facet | Lee, Jongmin Jeong, Bum Ho Kamaraj, Eswaran Kim, Dohyung Kim, Hakjun Park, Sanghyuk Park, Hui Joon |
author_sort | Lee, Jongmin |
collection | PubMed |
description | An optoelectronic synapse having a multispectral color-discriminating ability is an essential prerequisite to emulate the human retina for realizing a neuromorphic visual system. Several studies based on the three-terminal transistor architecture have shown its feasibility; however, its implementation with a two-terminal memristor architecture, advantageous to achieving high integration density as a simple crossbar array for an ultra-high-resolution vision chip, remains a challenge. Furthermore, regardless of the architecture, it requires specific material combinations to exhibit the photo-synaptic functionalities, and thus its integration into various systems is limited. Here, we suggest an approach that can universally introduce a color-discriminating synaptic functionality into a two-terminal memristor irrespective of the kinds of switching medium. This is possible by simply introducing the molecular interlayer with long-lasting photo-enhanced dipoles that can adjust the resistance of the memristor at the light-irradiation. We also propose the molecular design principle that can afford this feature. The optoelectronic synapse array having a color-discriminating functionality is confirmed to improve the inference accuracy of the convolutional neural network for the colorful image recognition tasks through a visual pre-processing. Additionally, the wavelength-dependent optoelectronic synapse can also be leveraged in the design of a light-programmable reservoir computing system. |
format | Online Article Text |
id | pubmed-10507016 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105070162023-09-20 Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system Lee, Jongmin Jeong, Bum Ho Kamaraj, Eswaran Kim, Dohyung Kim, Hakjun Park, Sanghyuk Park, Hui Joon Nat Commun Article An optoelectronic synapse having a multispectral color-discriminating ability is an essential prerequisite to emulate the human retina for realizing a neuromorphic visual system. Several studies based on the three-terminal transistor architecture have shown its feasibility; however, its implementation with a two-terminal memristor architecture, advantageous to achieving high integration density as a simple crossbar array for an ultra-high-resolution vision chip, remains a challenge. Furthermore, regardless of the architecture, it requires specific material combinations to exhibit the photo-synaptic functionalities, and thus its integration into various systems is limited. Here, we suggest an approach that can universally introduce a color-discriminating synaptic functionality into a two-terminal memristor irrespective of the kinds of switching medium. This is possible by simply introducing the molecular interlayer with long-lasting photo-enhanced dipoles that can adjust the resistance of the memristor at the light-irradiation. We also propose the molecular design principle that can afford this feature. The optoelectronic synapse array having a color-discriminating functionality is confirmed to improve the inference accuracy of the convolutional neural network for the colorful image recognition tasks through a visual pre-processing. Additionally, the wavelength-dependent optoelectronic synapse can also be leveraged in the design of a light-programmable reservoir computing system. Nature Publishing Group UK 2023-09-18 /pmc/articles/PMC10507016/ /pubmed/37723149 http://dx.doi.org/10.1038/s41467-023-41419-y Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Lee, Jongmin Jeong, Bum Ho Kamaraj, Eswaran Kim, Dohyung Kim, Hakjun Park, Sanghyuk Park, Hui Joon Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system |
title | Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system |
title_full | Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system |
title_fullStr | Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system |
title_full_unstemmed | Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system |
title_short | Light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system |
title_sort | light-enhanced molecular polarity enabling multispectral color-cognitive memristor for neuromorphic visual system |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10507016/ https://www.ncbi.nlm.nih.gov/pubmed/37723149 http://dx.doi.org/10.1038/s41467-023-41419-y |
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