Thermally stimulated exoelectron emission from the surface of black aluminum layers prepared by PVD methods

0585134 - FZÚ 2025 RIV GB eng J - Journal Article
Pokorný, Petr - Hruška, M. - Novotný, Michal - More Chevalier, Joris - Fitl, Přemysl - Chertopalov, Sergii - Kiba, T. - Kawamura, M. - Vrňata, M. - Lančok, Ján
Thermally stimulated exoelectron emission from the surface of black aluminum layers prepared by PVD methods.
Vacuum. Roč. 221, Mar (2024), č. článku 112880. ISSN 0042-207X. E-ISSN 1879-2715
R&D Projects: GA ČR GA23-05002S
Institutional support: RVO:68378271
Keywords : thermostimulated exoemission * black aluminum * thin layer * temperature maximum * activation energy * PVD methods
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4, year: 2022

There is an increasing trend in the utilization of highly nanostructured materials, especially as light absorbers or chemical gas sensors. However, for most applications a more detailed study of surface processes and phenomena is necessary or at least highly beneficial.The present paper describes the surface processes of black aluminum prepared by different PVD methods (magnetron sputtering at room and liquid nitrogen temperature, and thermal evaporation) studied by thermally stimulated exoelectron emission. The actual investigation of the interaction between surface and adsorbed atoms and molecules was carried out after UV irradiation. For the samples prepared in this way, thermostimulated exoelectron emission was measured in the temperature range: liquid nitrogen temperature to 400 degrees C. SEM analysis revealed significant differences in the morphology of the layers, which were associated with a change in the position of the maxima in the thermostimulated exoelectron emission spectra.
Permanent Link: https://hdl.handle.net/11104/0352869