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Theoretical derivat...
Theoretical derivation of the isothermal transient ionic current in an ion conductor : Migration, diffusion, and space-charge effects
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- Frenning, Göran (författare)
- Uppsala universitet,Institutionen för materialvetenskap
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- Strömme, Maria (författare)
- Uppsala universitet,Institutionen för materialvetenskap
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(creator_code:org_t)
- AIP Publishing, 2001
- 2001
- Engelska.
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Ingår i: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 90:11, s. 5570-5575
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The Green’s function technique was used to determine the isothermal transient ionic current (ITIC) caused by the application of a constant potential across an ion conductor which initially contained the ions under consideration. The analysis included migration, diffusion, and space-charge effects as contributions to the ionic motion. Furthermore, the relative importance of diffusion and space-charge effects as currentlimiters was investigated. It was found that ion concentrations as low as ∼1016–1017 cm−3 are sufficient to make space-charge effects the dominant contribution to the decay of the ITIC at low applied electric fields(∼104 V/cm). Hence such effects should be taken into consideration when the ITIC method is used to determine conduction parameters.
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