Open AccessВлияние адсорбции атомов натрия и прогрева на наночастицы золота, адсорбированные на вольфраме
Author(s) -
П.А. Дементьев,
Е.В. Иванова,
М.Н. Лапушкин,
Д.А. Cмирнов,
С.Н. Тимошнев
Publication year - 2020
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2020.08.49597.071
Subject(s) - tungsten , x ray photoelectron spectroscopy , adsorption , cathodoluminescence , materials science , analytical chemistry (journal) , spectral line , surface layer , valence (chemistry) , synchrotron radiation , excitation , atomic physics , chemistry , layer (electronics) , nanotechnology , nuclear magnetic resonance , luminescence , optics , metallurgy , optoelectronics , physics , electrical engineering , organic chemistry , chromatography , astronomy , engineering
The electronic structure of gold nanoparticles deposited on the surface of tungsten before and after the adsorption of sodium atoms followed by heating at T = 630 K was studied in situ in ultrahigh vacuum by photoelectron spectroscopy. The photoemission spectra from the valence band and core levels of Au 4f and Na 2p were studied under synchrotron excitation in the photon energy range 80-600 eV. It was shown that changes in the spectra of the valence band and core levels of Au 4f and Na 2p are associated with a change in the surface topography caused by the adsorption of sodium atoms and heating, which led to an increase in the surface area by several times. The surface topography and cathodoluminescence of a layer of gold nanoparticles deposited on a tungsten surface are studied