Abstract: The quantification of surface and subsurface oxidation of Be/Al periodic multilayer mirrors due to exposure in the ambient atmosphere was investigated by depth-resolved X-ray photoelectron spectroscopy. The contribution of oxidation was lower for the thicker layer of Al in the periodic structures since the surface was less chemically reactive for the oxidation. This was investigated by finding the depth-resolved slope pof the intensity ratio of metal/oxides (Be/BeOx and Al/AlOx) by analyzing the chemical shift of Al 1s and Be 1s photoelectrons. Furthermore, a well-resolved doublet chemical shift in the O 1s spectra indicated the formation of BeOx/AlOx and BeOH/AlOH oxides. The investigation showed that the subsurface and surface regions were dominated by metal–hydroxide (BeOH/AlOH) and metal–oxide (BeOx/AlOx) bonding, respectively, analyzed by the depth-resolved chemical shifts.

Cite: Kumar N. , Pleshkov R.S. , Prathibha B.S. , Polkovnikov V.N. , Chkhalo N.I. , Golyashov V.A. , Tereshchenko O.E.
Depth-Resolved Oxidational Studies of Be/Al Periodic Multilayers Investigated by X-ray Photoelectron Spectroscopy
PCCP: Physical Chemistry Chemical Physics. 2023. V.25. N2. P.1205-1213. DOI: 10.1039/d2cp04778k WOS Scopus РИНЦ ANCAN PMID OpenAlex publication_identifier_short.sciact_skif_identifier_type

Dates:

Submitted:	Oct 13, 2022
Accepted:	Dec 1, 2022
Published online:	Dec 2, 2022
Published print:	Jan 14, 2023

Identifiers:

Web of science:	WOS:000899134900001
Scopus:	2-s2.0-85144189368
Elibrary:	59456884
Chemical Abstracts:	2022:3107635
Chemical Abstracts (print):	181:278329
PMID:	36519592
OpenAlex:	W4311588344
publication_identifier.sciact_skif_identifier_type:	1542

Citing:

DB	Citing
OpenAlex	1
Web of science	2

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