Journal
ELECTROCHIMICA ACTA
Volume 54, Issue 25, Pages 6042-6045Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2009.01.012
Keywords
Ionic liquids; Electrodeposition; Ruthenium
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Electrochemical deposition of ruthenium on n-type silicon from an ionic liquid is reported for the first time. The study was performed by dissolving ruthenium(M) chloride in a 1-butyl-3-methyl imidazolium hexafluorophosphate (BMIPF6) room-temperature ionic liquid (RTIL). Cyclic voltammetry (CV) studies demonstrate reduction and stripping peaks at -2.1 and 0.2V vs. Pt quasi-reference, corresponding to the deposition and dissolution of ruthenium, respectively. Metallic Ru films of similar to 100 nm thickness have been deposited and were analyzed using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). (C) 2009 Elsevier Ltd. All rights reserved.
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