Stress induced one‐dimensional model for current oscillations at the Si/electrolyte contact

Autor: Thilo Notz, H. J. Lewerenz, J. Grzanna
Rok vydání: 2009
Předmět:
Zdroj: physica status solidi c. 6:1639-1643
ISSN: 1610-1642
1862-6351
DOI: 10.1002/pssc.200881028
Popis: A cellular automata is introduced to model the locally resolved oxide thickness, the stress, and the etching rate dynamics at the silicon electrolyte contact along a macroscopically long line (1 mm). Short- and long-range interaction mechanisms are considered to achieve current oscillations. Extended chronoamperometric oscillations are obtained but finally, the oscillations become increasingly damped for the case of a locally acting stress and a locally varying etching rate. The additional incorporation of a small oscillating and long-range interacting nominal etching rate into the model leads to sustained oscillations. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Databáze: OpenAIRE