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Effect of roughness and nanoporosity on optical properties of black and reflective Al films prepared by magnetron sputtering
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SYSNO ASEP 0542812 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of roughness and nanoporosity on optical properties of black and reflective Al films prepared by magnetron sputtering Author(s) Hruška, Petr (FZU-D) ORCID
More Chevalier, Joris (FZU-D) ORCID
Novotný, Michal (FZU-D) RID, ORCID, SAI
Čížek, J. (CZ)
Melikhova, O. (CZ)
Fekete, Ladislav (FZU-D) RID, ORCID
Poupon, Morgane (FZU-D) ORCID
Bulíř, Jiří (FZU-D) RID, ORCID, SAI
Volfová, Lenka (FZU-D) ORCID
Butterling, M. (DE)
Liedke, M.O. (DE)
Wagner, A. (DE)
Fitl, Přemysl (FZU-D) RID, ORCIDNumber of authors 13 Article number 159744 Source Title Journal of Alloys and Compounds. - : Elsevier - ISSN 0925-8388
Roč. 872, Aug (2021)Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords atomic force microscopy ; black aluminum ; magnetron sputtering ; positron annihilation spectroscopy ; spectrophotometric reflectance Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA18-09347S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000652811200002 EID SCOPUS 85103928729 DOI 10.1016/j.jallcom.2021.159744 Annotation In this work, a comparison of the microstructure of black and classic reflective aluminum films is provided. The N2 concentration during the magnetron sputtering deposition has a key impact on the growth process and final moth-eye-like morphology of black Al films. The study of films with thickness ~1.5 μm and ~8 μm and fully developed microstructure enabled us to clarify the origin of different optical properties of black and reflective Al. Atomic force microscopy measurements showed high roughnesses for both types of films leading to light scattering from their surface. In the case of black Al, the incident light is absorbed in a fractal-like nanoporous surface. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.jallcom.2021.159744
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