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Study of oscillatory behavior of open‐circuit potential of silicon immersed in CuSO 4 /HF solutions
Author(s) -
Parkhutik V.,
Rayon E.,
Pastor E.,
Matveeva E.,
Sasano J.,
Ogata Y.
Publication year - 2005
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200461192
Subject(s) - electrolyte , aqueous solution , viscosity , silicon , open circuit voltage , chemistry , chemical engineering , thermodynamics , chemical physics , materials science , electrode , physics , voltage , organic chemistry , engineering , quantum mechanics
This work studies the influence of experimental conditions on the occurrence and development of oscillations of the open‐circuit potential (OCP) of silicon immersed in aqueous solution of 0.01 M CuSO 4 + 0.06 M HF. The oscillations are very regular and last for days without any tendency to diminish. We show that they are quite sensitive to the temperature of the electrolyte, its viscosity, stirring, relative concentration of components, etc. We also present a phenomenological model to explain the oscillatory OCP behavior. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)