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Novel transparent Mg-Si-O-N thin films with high hardness and refractive index
Linnaeus University, Sweden.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Applied Optics . Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-6371-0638
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-4898-5115
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2016 (English)In: Vacuum, ISSN 0042-207X, E-ISSN 1879-2715, Vol. 131Article in journal (Refereed) Published
Abstract [en]

There is an increasing demand for glass materials with better mechanical and optical properties for display and electronic applications. This paper describes the deposition of novel thin films of Mg-circle divide-Si-O-N onto float glass substrates. Amorphous thin films in the Mg-Si-O-N system with high nitrogen and magnesium contents were deposited by reactive RF magnetron co-sputtering from Mg and Si targets in Ar/N-2/O-2 gas mixtures. The thin films studied span an unprecedented range of compositions up to 45 at% Mg and 80 at% N out of cations and anions respectively. Thin films in the Mg-Si-O-N system were found to be homogeneous and transparent in the visible region. Mechanical properties like hardness (H) and reduced elastic modulus (Er) show high values, up to 21 GPa and 166 GPa respectively. The refractive index (1.87-2.00) increases with increasing magnesium and nitrogen contents. (C) 2016 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2016. Vol. 131
Keyword [en]
Oxynitride thin films; Magnetron sputtering; High nitrogen content; Hardness; Refractive index
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-131901DOI: 10.1016/j.vacuum.2016.05.023ISI: 000381541400001OAI: oai:DiVA.org:liu-131901DiVA: diva2:1034872
Note

Funding Agencies|AForsk foundation [14- 457]; European Research Council under the European Communitys Seventh Framework Programme (FP)/ERC grant [335383]; Swedish Foundation for Strategic Research (SSF) through the Future Research Leaders 5 Program; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University Faculty Grant SFO Mat LiU [2009 00971]

Available from: 2016-10-13 Created: 2016-10-11 Last updated: 2017-11-29

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Vacuum
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