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Effects of substrates, film thickness and temperature on thermal emittance of Mo/substrate deposited by magnetron sputtering
Beihang Univ, Dept Phys, Ctr Condensed Matter & Mat Phys, Beijing 100191, Peoples R China..
Beihang Univ, Dept Phys, Ctr Condensed Matter & Mat Phys, Beijing 100191, Peoples R China..
Beihang Univ, Dept Phys, Ctr Condensed Matter & Mat Phys, Beijing 100191, Peoples R China..
Beihang Univ, Dept Phys, Ctr Condensed Matter & Mat Phys, Beijing 100191, Peoples R China..
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2016 (English)In: Vacuum, ISSN 0042-207X, E-ISSN 1879-2715, Vol. 128, 73-79 p.Article in journal (Refereed) PublishedText
Abstract [en]

The thermal emittance of the Mo film, as an IR-refiector in solar selective absorbing coatings, is the most important property. The effects of the substrate material, the substrate surface roughness, the film thickness and the temperature on the thermal emittance of the Mo/substrate have been investigated. A series of Mo films with increasing film thickness were deposited on two types of substrate materials (glass and stainless steel). A saturated Mo thickness of 50 nm is found to produce the lowest thermal emittance. The thermal emittance of the Mo film is reduced by decreasing the substrate surface roughness. The emittance of the optimal Mo film remains 0.05 from 25 degrees C to 400 degrees C, which can meet the optical requirements for the IR-reflector.

Place, publisher, year, edition, pages
2016. Vol. 128, 73-79 p.
Keyword [en]
Thermal emittance, Substrate surface roughness, Mo film
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:uu:diva-298079DOI: 10.1016/j.vacuum.2016.03.008ISI: 000376052500010OAI: oai:DiVA.org:uu-298079DiVA: diva2:944805
Available from: 2016-06-30 Created: 2016-06-29 Last updated: 2016-08-30Bibliographically approved

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Zhao, Shuxi
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Solid State Physics
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