Dielectric Breakdown by Electric-field Induced Phase Separation
© 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited. The control of the dielectric and conductive properties of device-level systems is important for increasing the efficiency of energy- A nd information-related technologies. In some cases, such...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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The Electrochemical Society
2021
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| Online Access: | https://hdl.handle.net/1721.1/135377 |
| _version_ | 1826202595377545216 |
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| author | Fraggedakis, Dimitrios Mirzadeh, Mohammad Zhou, Tingtao Bazant, Martin Z |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Fraggedakis, Dimitrios Mirzadeh, Mohammad Zhou, Tingtao Bazant, Martin Z |
| author_sort | Fraggedakis, Dimitrios |
| collection | MIT |
| description | © 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited. The control of the dielectric and conductive properties of device-level systems is important for increasing the efficiency of energy- A nd information-related technologies. In some cases, such as neuromorphic computing, it is desirable to increase the conductivity of an initially insulating medium by several orders of magnitude, resulting in effective dielectric breakdown. Here, we show that by tuning the value of the applied electric field in systems with variable permittivity and electric conductivity, e.g. ion intercalation materials, we can vary the device-level electrical conductivity by orders of magnitude. We attribute this behavior to the formation of filament-like conductive domains that percolate throughout the system, which form only when the electric conductivity depends on the concentration. We conclude by discussing the applicability of our results in neuromorphic computing devices and Li-ion batteries. |
| first_indexed | 2024-09-23T12:10:09Z |
| format | Article |
| id | mit-1721.1/135377 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:10:09Z |
| publishDate | 2021 |
| publisher | The Electrochemical Society |
| record_format | dspace |
| spelling | mit-1721.1/1353772023-02-23T16:00:19Z Dielectric Breakdown by Electric-field Induced Phase Separation Fraggedakis, Dimitrios Mirzadeh, Mohammad Zhou, Tingtao Bazant, Martin Z Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Department of Mathematics © 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited. The control of the dielectric and conductive properties of device-level systems is important for increasing the efficiency of energy- A nd information-related technologies. In some cases, such as neuromorphic computing, it is desirable to increase the conductivity of an initially insulating medium by several orders of magnitude, resulting in effective dielectric breakdown. Here, we show that by tuning the value of the applied electric field in systems with variable permittivity and electric conductivity, e.g. ion intercalation materials, we can vary the device-level electrical conductivity by orders of magnitude. We attribute this behavior to the formation of filament-like conductive domains that percolate throughout the system, which form only when the electric conductivity depends on the concentration. We conclude by discussing the applicability of our results in neuromorphic computing devices and Li-ion batteries. 2021-10-27T20:23:12Z 2021-10-27T20:23:12Z 2020 2021-06-07T17:21:48Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/135377 en 10.1149/1945-7111/ABA552 Journal of the Electrochemical Society Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf The Electrochemical Society MIT web domain |
| spellingShingle | Fraggedakis, Dimitrios Mirzadeh, Mohammad Zhou, Tingtao Bazant, Martin Z Dielectric Breakdown by Electric-field Induced Phase Separation |
| title | Dielectric Breakdown by Electric-field Induced Phase Separation |
| title_full | Dielectric Breakdown by Electric-field Induced Phase Separation |
| title_fullStr | Dielectric Breakdown by Electric-field Induced Phase Separation |
| title_full_unstemmed | Dielectric Breakdown by Electric-field Induced Phase Separation |
| title_short | Dielectric Breakdown by Electric-field Induced Phase Separation |
| title_sort | dielectric breakdown by electric field induced phase separation |
| url | https://hdl.handle.net/1721.1/135377 |
| work_keys_str_mv | AT fraggedakisdimitrios dielectricbreakdownbyelectricfieldinducedphaseseparation AT mirzadehmohammad dielectricbreakdownbyelectricfieldinducedphaseseparation AT zhoutingtao dielectricbreakdownbyelectricfieldinducedphaseseparation AT bazantmartinz dielectricbreakdownbyelectricfieldinducedphaseseparation |