AES CHARACTERIZATION OF CONSTITUENTS’ OXIDATION STATE IN SPECTRALLY SELECTIVE TITANIUM-OXYNITRIDE COATINGS ON METALS FOR HIGH EFFICIENT SOLAR ABSORBERS

Darja Steiner Petrovič, Anka Trajkovska Petkoska, Ilija Nasov and Djordje Mandrino
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Darja Steiner Petrovič: Institute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, Slovenia
Anka Trajkovska Petkoska: #x2020;Bitola, Faculty of Technology and Technical Sciences, St. Kliment Ohridski University, Veles, Dimitar Vlahov bb, 1400, Veles, Macedonia
Ilija Nasov: #x2021;Center for Plasma Technologies - Plasma, Veljko Vlahovic 18, 1000 Skopje, Macedonia
Djordje Mandrino: Institute of Metals and Technology, Lepi pot 11, 1000 Ljubljana, Slovenia

Surface Review and Letters (SRL), 2020, vol. 27, issue 03, 1-7

Abstract: In this study, a surface-sensitive Auger Electron Spectroscopy (AES) was used to comprehensively characterize titanium-oxynitride coatings on metals for high efficient solar absorbers. Primary information obtained from the AES is chemical composition, but chemical state of the elements may also be estimated. Corroborative information about the coating’s structure was obtained from the estimate of Cu, Al and Ti oxidation state vs depth, also derived from the AES data. Ti/(O + N) concentration ratios vs depth in TiOXNY layer of the coatings on the Al and Cu substrate were also determined. Physical Vapor Deposition (PVD) was used to prepare TiOXNY multilayered on Al and Cu substrates. Individual layer’s depth was in submicron domain. Deposition procedure and corresponding deposition parameters are presented. Optical properties (emittance, absorptance) of the coatings on both substrate types were also measured to confirm that coatings performed well their intended function (i.e. spectral selectivity).

Keywords: Titanium-oxynitride; oxidation state; AES depth profiling; surface science; spectrally selective coating (search for similar items in EconPapers)
Date: 2020
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DOI: 10.1142/S0218625X19501208

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