Dielectric Breakdown by Electric-field Induced Phase Separation
Name
Fraggedakis_2020_JECS_dielectric_breakdown_phase_separation.pdf
Description
Published version
Size
1.17 MB
Format
Adobe PDF
Checksum (MD5)
a223fba9f76862d94e2dc9e4a0d1339d
Author(s)
Fraggedakis, Dimitrios
Mirzadeh, Mohammad
Zhou, Tingtao
Bazant, Martin Z
Date Issued
2020
Journal
Journal of the Electrochemical Society
Publisher
The Electrochemical Society
Version
Final published version
Abstract
© 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.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Department of Mathematics
Terms of Use
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.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1149/1945-7111/ABA552
