An XPS study of Al                         2                         Au and AlAu                         4                          intermetallic oxidation

C. Xu; T. Sritharan; S. G. Mhaisalkar; M. Srinivasan; S. Zhang

doi:10.1016/j.apsusc.2007.01.068

An XPS study of Al ₂ Au and AlAu ₄ intermetallic oxidation

C. Xu, T. Sritharan^*, S. G. Mhaisalkar, M. Srinivasan, S. Zhang

^*Corresponding author for this work

Nanyang Technological University

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Samples of Al ₂ Au and AlAu ₄ were examined using XPS after controlled oxidation in air. AlAu ₄ showed a strong tendency to oxidize compared to Al ₂ Au. The binding energies (b.e.) of Au 4f and Al 2p XPS emissions were determined for both intermetallics. Heavy oxidation of AlAu ₄ resulted in a unique Au 4f emission near the surface which was attributed to Au dissolved in aluminum oxide.

Original language	English
Pages (from-to)	6217-6221
Number of pages	5
Journal	Applied Surface Science
Volume	253
Issue number	14
DOIs	https://doi.org/10.1016/j.apsusc.2007.01.068
Publication status	Published - May 15 2007
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

Keywords

Binding energy
Gold
Intermetallic compounds
Oxidation
X-ray photoelectron spectroscopy

Access to Document

10.1016/j.apsusc.2007.01.068

Cite this

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title = " An XPS study of Al 2 Au and AlAu 4 intermetallic oxidation ",

abstract = " Samples of Al 2 Au and AlAu 4 were examined using XPS after controlled oxidation in air. AlAu 4 showed a strong tendency to oxidize compared to Al 2 Au. The binding energies (b.e.) of Au 4f and Al 2p XPS emissions were determined for both intermetallics. Heavy oxidation of AlAu 4 resulted in a unique Au 4f emission near the surface which was attributed to Au dissolved in aluminum oxide.",

keywords = "Binding energy, Gold, Intermetallic compounds, Oxidation, X-ray photoelectron spectroscopy",

author = "C. Xu and T. Sritharan and Mhaisalkar, {S. G.} and M. Srinivasan and S. Zhang",

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Xu, C, Sritharan, T, Mhaisalkar, SG , Srinivasan, M & Zhang, S 2007, ' An XPS study of Al ₂ Au and AlAu ₄ intermetallic oxidation ', Applied Surface Science, vol. 253, no. 14, pp. 6217-6221. https://doi.org/10.1016/j.apsusc.2007.01.068

An XPS study of Al ₂ Au and AlAu ₄ intermetallic oxidation . / Xu, C.; Sritharan, T.; Mhaisalkar, S. G. et al.
In: Applied Surface Science, Vol. 253, No. 14, 15.05.2007, p. 6217-6221.

Research output: Contribution to journal › Article › peer-review

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AU - Xu, C.

AU - Sritharan, T.

AU - Mhaisalkar, S. G.

AU - Srinivasan, M.

AU - Zhang, S.

PY - 2007/5/15

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AB - Samples of Al 2 Au and AlAu 4 were examined using XPS after controlled oxidation in air. AlAu 4 showed a strong tendency to oxidize compared to Al 2 Au. The binding energies (b.e.) of Au 4f and Al 2p XPS emissions were determined for both intermetallics. Heavy oxidation of AlAu 4 resulted in a unique Au 4f emission near the surface which was attributed to Au dissolved in aluminum oxide.

KW - Binding energy

KW - Gold

KW - Intermetallic compounds

KW - Oxidation

KW - X-ray photoelectron spectroscopy

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