Effect of current and potential waveforms on sublayer thickness of electrodeposited copper-nickel multilayers

W. R A Meuleman, S. Roy, L. Péter, I. Varga

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Electrodeposition of nickel-copper multilayers has been studied in order to understand the effect of current and potential wave-forms on layer thickness and composition of nanostructured metal multilayers. Two simple charge balance models for multilayer deposition have been developed to calculate the amount of the less noble material dissolved from the deposit. The models take into account that the less noble material (here, nickel) may be lost from the deposit due to either anodic dissolution or a displacement reaction. Experimentally, Ni(Cu)/Cu metal multilayers have been deposited from a citrate electrolyte in a vertical flow channel under controlled hydrodynamic conditions. Multilayers were deposited by two different fabrication methods: constant current/constant potential and constant current/relaxation/constant current method. A match between the experimental data and models was used to calculate the amount of nickel dissolved from the deposit. It was found that about one or four monolayers of nickel are dissolved from the Ni(Cu) layer due dissolution and displacement, respectively. The deposition modes studied lead to different deposit morphology.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume149
Issue number10
DOIs
Publication statusPublished - Oct 2002

Fingerprint

Nickel
Copper
Multilayers
waveforms
deposits
nickel
copper
Deposits
dissolving
Dissolution
Metals
channel flow
citrates
electrodeposition
metals
Channel flow
Electrodeposition
Citric Acid
hydrodynamics
Electrolytes

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Effect of current and potential waveforms on sublayer thickness of electrodeposited copper-nickel multilayers. / Meuleman, W. R A; Roy, S.; Péter, L.; Varga, I.

In: Journal of the Electrochemical Society, Vol. 149, No. 10, 10.2002.

Research output: Contribution to journalArticle

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