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MgyNi1-y(H-x) thin films deposited by magnetron co-sputtering
Institute for Energy Technology, Kjeller, Norge.
Institute for Energy Technology, Kjeller, Norge.
Institute for Energy Technology, Kjeller, Norge.
Institute for Energy Technology, Kjeller, Norge.
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2012 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 527, 76-83 p.Article in journal (Refereed) Published
Abstract [en]

In this work we have synthesized thin films of MgyNi1-y(H-x) metal and metal hydride with y between 0 and 1. The films are deposited by magnetron co-sputtering of metallic targets of Mg and Ni. Metallic MgyNi1-y films were deposited with pure Ar plasma while MgyNi1-yHx hydride films were deposited reactively with 30% H-2 in the Ar plasma. The depositions were done with a fixed substrate carrier, producing films with a spatial gradient in the Mg and Ni composition. The combinatorial method of co-sputtering gives an insight into the phase diagram of MgyNi1-y and MgyNi1-yHx, and allows us to investigate structural, optical and electrical properties of the resulting alloys. Our results show that reactive sputtering gives direct deposition of metal hydride films, with high purity in the case of Mg similar to 2NiH similar to 4. We have observed limited oxidation after several months of exposure to ambient conditions. MgyNi1-y and MgyNi1-yHx films might be applied for optical control in smart windows, optical sensors and as a semiconducting material for photovoltaic solar cells.

Place, publisher, year, edition, pages
2012. Vol. 527, 76-83 p.
Keyword [en]
Metal hydrides, Semiconductors, Thin films, Vapour deposition, Optical spectroscopy, Transmission electron microscopy (TEM)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Engineering Science with specialization in Electronics
Identifiers
URN: urn:nbn:se:uu:diva-174342DOI: 10.1016/j.jallcom.2012.02.155ISI: 000302776600013OAI: oai:DiVA.org:uu-174342DiVA: diva2:528244
Available from: 2012-05-24 Created: 2012-05-15 Last updated: 2017-12-07Bibliographically approved

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Platzer-Björkman, Charlotte

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