Surface processes on thin layers of black aluminum in ultra-high vacuum

0561222 - FZÚ 2023 RIV GB eng J - Journal Article
Pokorný, Petr - Novotný, Michal - More Chevalier, Joris - Dekhtyar, Y. - Romanova, M. - Davídková, Marie - Chertopalov, Sergii - Fitl, Přemysl - Hruška, M. - Kawamura, M. - Kiba, T. - Lančok, Ján
Surface processes on thin layers of black aluminum in ultra-high vacuum.
Vacuum. Roč. 205, Nov (2022), č. článku 111377. ISSN 0042-207X. E-ISSN 1879-2715
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760; AV ČR(CZ) LZA-19-01
Program: Bilaterální spolupráce
Research Infrastructure: CANAM II - 90056
Institutional support: RVO:68378271 ; RVO:61389005
Keywords : black aluminum * exo-electron emission * gas desorption * activation energy * low temperatu
OECD category: Condensed matter physics (including formerly solid state physics, supercond.); Nuclear physics (UJF-V)
Impact factor: 4, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.vacuum.2022.111377

Thin films of black aluminum (B-Al) were prepared by pulsed DC magnetron sputtering in a mixture of argon + nitrogen (Ar + N2) gases with concentration of nitrogen 6 %. At this concentration the process of anti-reflective surface (UV to near IR diffuse reflectance below 4%) formation is favored. The properties of such layers have been investigated using methods allowing to follow near-surface processes by means of thermally stimulated desorption (TSD) and thermally stimulated exo-electron emission (TSEE) in ultrahigh vacuum conditions (p < 2.10-7 Pa). It is shown that at certain temperatures some adsorbed particles are desorbed and at the same time negative charges are emitted.

Permanent Link: https://hdl.handle.net/11104/0333910