Morphological instability during steady electrodeposition at overlimiting currents
Open Access
- 16 November 2015
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 92 (5), 052310
- https://doi.org/10.1103/physreve.92.052310
Abstract
We present a linear stability analysis of a planar metal electrode during steady electrodeposition. We extend the previous work of Sundstrom and Bark by accounting for the extended space-charge density, which develops at the cathode once the applied voltage exceeds a few thermal voltages. In accordance with Chazalviel's conjecture, the extended space-charge region is found to greatly affect the morphological stability of the electrode. To supplement the numerical solution of the stability problem, we have derived analytical expressions valid in the limit of low and high voltage, respectively.Keywords
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