The interaction between atoms of Au and Cu with clean Si(1 1 1) surface: A study combining synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations

In order to evaluate the interactions between Au/Cu atoms and clean Si(1 1 1) surface, we used synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations. Optimized geometries and energies on different adsorption sites indicate that the binding energies at diffe...

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Published inSpectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 74; no. 1; pp. 292 - 296
Main Authors de Carvalho, Hudson W.P., Batista, Ana P.L., Ramalho, Teodorico C., Pérez, Carlos A., Gobbi, Angelo Luiz
Format Journal Article
LanguageEnglish
Published England Elsevier B.V 15.09.2009
Subjects
Absorption
Copper - chemistry
Copper - pharmacokinetics
Gold - chemistry
Gold - pharmacokinetics
Grazing incidence X-ray fluorescence (GIXRF) analysis
Models, Biological
Models, Molecular
Models, Theoretical
Molecular Structure
Semiconductor surface
Silicon - chemistry
Silicon - metabolism
Spectrometry, X-Ray Emission - instrumentation
Spectrometry, X-Ray Emission - methods
Surface Properties
Synchrotrons
Total X-ray reflection
Semiconductor surface
Total X-ray reflection
Grazing incidence X-ray fluorescence (GIXRF) analysis
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Summary:In order to evaluate the interactions between Au/Cu atoms and clean Si(1 1 1) surface, we used synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations. Optimized geometries and energies on different adsorption sites indicate that the binding energies at different adsorption sites are high, suggesting a strong interaction between metal atom and silicon surface. The Au atom showed higher interaction than Cu atom. The theoretical and experimental data showed good agreement.
ISSN:1386-1425
1873-3557
DOI:10.1016/j.saa.2009.06.021