Plasmon Spectroscopy of Anisotropic Gold Nanoclusters on GaAs(001) Surface Passivated by Sulphur Atoms

This work demonstrates how to create the structures Au/GaAs with perfect on-surface gold nanoclusters. In doing so, used is covering the GaAs substrate with chemically stable atomic monolayers of sulphur to prevent subsequently a chemical reaction of Au with GaAs. The structures Au/S/GaAs with monol...

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Bibliographic Details
Published in:Semiconductors (Woodbury, N.Y.) N.Y.), 2023-07, Vol.57 (7), p.321-325
Main Authors: Berkovits, V. L., Kosobukin, V. A., Ulin, V. P., Alekseev, P. A., Soldatenkov, F. Yu, Levitskii, V. A.
Format: Article
Language:English
Subjects:
Anisotropy
Chemical reactions
Electronics industry
Gallium arsenide
Gold
Magnetic Materials
Magnetism
Monolayers
Nanoclusters
Optical properties
Physics
Physics and Astronomy
Plasmons
Spectrum analysis
Substrates
Sulfur
Sulfur compounds
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Summary:This work demonstrates how to create the structures Au/GaAs with perfect on-surface gold nanoclusters. In doing so, used is covering the GaAs substrate with chemically stable atomic monolayers of sulphur to prevent subsequently a chemical reaction of Au with GaAs. The structures Au/S/GaAs with monolayers of chemisorbed sulphur atoms are fabricated, characterized and studied by polarized reflection spectroscopy. The anisotropy of on-surface gold nanoclusters is established, and the anisotropic plasmons localized in Au clusters are investigated using the spectra of polarized reflection and interpreted theoretically.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782623090063