V. L. Berkovits, V. A. Kosobukin, V. P. Ulin, A. V. Nashchekin, S. A. Khakhulin, “Chemical preparation of gold nanoclusters on GaP (001) surface and spectroscopy of their localized plasmons”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2025, Volume 51, Issue 9,Pages <nobr>14

Chemical preparation of gold nanoclusters on GaP (001) surface and spectroscopy of their localized plasmons

V. L. Berkovits^a, V. A. Kosobukin^a, V. P. Ulin^a, A. V. Nashchekin^a, S. A. Khakhulin^b

^a Ioffe Institute, St. Petersburg
^b Saint Petersburg Electrotechnical University "LETI"

Abstract: Using chemical method which does not require heating of the samples, gold nanoclusters are prepared on surfaces (001) of GaP crystals. Characterization of the obtained Au/GaP nanostructures are performed and plasmons in the structures are studied by method of reflectance anisotropy spectroscopy. It is shown that spectral feature at energy near 2eV belongs to plasmons of the weakly anisotropic Au clusters elongated predominantly in [110] crystallographic direction on GaP(001) surface.

Keywords: gold clusters, gallium phosphide, polarization spectroscopy, anisotropic plasmons.

Received: 25.11.2024
Revised: 26.12.2024
Accepted: 05.01.2025

DOI: 10.61011/PJTF.2025.09.60225.20197