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Analytical model of electric field assisted ion diffusion into glass containing two indigenous mobile species, with application to poling

Oven, R (2020) Analytical model of electric field assisted ion diffusion into glass containing two indigenous mobile species, with application to poling. Journal of Non-Crystalline Solids, 553 . Article Number 120476. ISSN 0022-3093. (doi:10.1016/j.jnoncrysol.2020.120476) (KAR id:86623)

Abstract

An analytical model of electric field assisted diffusion of ions into glass is extended to include two indigenous mobile ion species that are initially uniformly distributed within the glass. A quasi-stationary state solution that includes diffusion effects and is applicable when the invasive ions have a lower mobility than the two indigenous species is presented. It is relevant to the electrical poling of soda-lime and borosilicate glasses with concentrations of mobile ions (Na+, K+) that are processed with a non-blocking anode where hydrogen ion injection occurs.

The model is compared with numerical solutions based on the drift-diffusion equations and Poisson’s equation and shows good agreement. The increase in the concentration of the indigenous species with the lower mobility (K+) below the poled layer within a pile-up region is accurately modelled.

Item Type: Article
DOI/Identification number: 10.1016/j.jnoncrysol.2020.120476
Uncontrolled keywords: Field assisted diffusion , Poling
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QA Mathematics (inc Computing science) > QA377 Partial differential equations
T Technology > TA Engineering (General). Civil engineering (General) > TA1520 Applied optics. Photonics
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Robert Oven
Date Deposited: 09 Mar 2021 16:05 UTC
Last Modified: 04 Oct 2022 23:00 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/86623 (The current URI for this page, for reference purposes)

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