Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic Liquids
We demonstrate a new memristive device (IL-Memristor), in which an ionic liquid (IL) serve as a material to control the volatility of the resistance. ILs are ultra-low vapor pressure liquids consisting of cations and anions at room temperature, and their introduction into solid-state processes can p...
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2021-03-01
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doaj-c4a07279e2834319842adb1c2fa2ec9a2021-03-31T06:39:58ZengFrontiers Media S.A.Frontiers in Nanotechnology2673-30132021-03-01310.3389/fnano.2021.660563660563Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic LiquidsHiroshi Sato0Hiroshi Sato1Hisashi Shima2Toshiki Nokami3Toshiyuki Itoh4Yusei Honma5Yasuhisa Naitoh6Hiroyuki Akinaga7Kentaro Kinoshita8Department of Applied Physics, Tokyo University of Science, Tokyo, JapanDevice Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, JapanDevice Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, JapanCenter for Research on Green Sustainable Chemistry, Tottori University, Tottori, JapanCenter for Research on Green Sustainable Chemistry, Tottori University, Tottori, JapanDevice Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, JapanDevice Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, JapanDevice Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, JapanDepartment of Applied Physics, Tokyo University of Science, Tokyo, JapanWe demonstrate a new memristive device (IL-Memristor), in which an ionic liquid (IL) serve as a material to control the volatility of the resistance. ILs are ultra-low vapor pressure liquids consisting of cations and anions at room temperature, and their introduction into solid-state processes can provide new avenues in electronic device fabrication. Because the device resistance change in IL-Memristor is governed by a Cu filament formation/rupture in IL, we considered that the Cu filament stability affects the data retention characteristics. Therefore, we controlled the data retention time by clarifying the corrosion mechanism and performing the IL material design based on the results. It was found out that the corrosion of Cu filaments in the IL was ruled by the comproportionation reaction, and that the data retention characteristics of the devices varied depending on the valence of Cu ions added to the IL. Actually, IL-Memristors involving Cu(II) and Cu(I) show volatile and non-volatile nature with respect to the programmed resistance value, respectively. Our results showed that data volatility can be controlled through the metal ion species added to the IL. The present work indicates that IL-memristor is suitable for unique applications such as artificial neuron with tunable fading characteristics that is applicable to phenomena with a wide range of timescale.https://www.frontiersin.org/articles/10.3389/fnano.2021.660563/fullconductive bridge RAMdata retention characteristicsAI devicesfading memoryionic liquidsreservoir devices |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hiroshi Sato Hiroshi Sato Hisashi Shima Toshiki Nokami Toshiyuki Itoh Yusei Honma Yasuhisa Naitoh Hiroyuki Akinaga Kentaro Kinoshita |
spellingShingle |
Hiroshi Sato Hiroshi Sato Hisashi Shima Toshiki Nokami Toshiyuki Itoh Yusei Honma Yasuhisa Naitoh Hiroyuki Akinaga Kentaro Kinoshita Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic Liquids Frontiers in Nanotechnology conductive bridge RAM data retention characteristics AI devices fading memory ionic liquids reservoir devices |
author_facet |
Hiroshi Sato Hiroshi Sato Hisashi Shima Toshiki Nokami Toshiyuki Itoh Yusei Honma Yasuhisa Naitoh Hiroyuki Akinaga Kentaro Kinoshita |
author_sort |
Hiroshi Sato |
title |
Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic Liquids |
title_short |
Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic Liquids |
title_full |
Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic Liquids |
title_fullStr |
Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic Liquids |
title_full_unstemmed |
Memristors With Controllable Data Volatility by Loading Metal Ion-Added Ionic Liquids |
title_sort |
memristors with controllable data volatility by loading metal ion-added ionic liquids |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Nanotechnology |
issn |
2673-3013 |
publishDate |
2021-03-01 |
description |
We demonstrate a new memristive device (IL-Memristor), in which an ionic liquid (IL) serve as a material to control the volatility of the resistance. ILs are ultra-low vapor pressure liquids consisting of cations and anions at room temperature, and their introduction into solid-state processes can provide new avenues in electronic device fabrication. Because the device resistance change in IL-Memristor is governed by a Cu filament formation/rupture in IL, we considered that the Cu filament stability affects the data retention characteristics. Therefore, we controlled the data retention time by clarifying the corrosion mechanism and performing the IL material design based on the results. It was found out that the corrosion of Cu filaments in the IL was ruled by the comproportionation reaction, and that the data retention characteristics of the devices varied depending on the valence of Cu ions added to the IL. Actually, IL-Memristors involving Cu(II) and Cu(I) show volatile and non-volatile nature with respect to the programmed resistance value, respectively. Our results showed that data volatility can be controlled through the metal ion species added to the IL. The present work indicates that IL-memristor is suitable for unique applications such as artificial neuron with tunable fading characteristics that is applicable to phenomena with a wide range of timescale. |
topic |
conductive bridge RAM data retention characteristics AI devices fading memory ionic liquids reservoir devices |
url |
https://www.frontiersin.org/articles/10.3389/fnano.2021.660563/full |
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