Durability of VO 2 -based thin films at elevated temperature: Towards thermochromic fenestration
2014 (English)In: INERA Workshop: Transition Metal Oxides as Functional Layers in Smart windows and Water Splitting Devices / Parallel session of the 18th International School on Condensed Matter Physics, 2014, UNSP 012005- p.Conference paper (Refereed)
An explorative study was performed on sputter-deposited thermochromic VO 2 films with top coatings of Al oxide and Al nitride. The films were exposed to dry air at a high temperature. Bare 80-nm-thick VO 2 films rapidly converted to non-thermochromic V 2 O 5 under the chosen conditions. Al oxide top coatings protected the underlying VO 2 films and, expectedly, increased film thickness yielded improved protection. Specifically, it was found that a 30-nm-thick sputter-deposited Al oxide top coating delayed the oxidation by more than one day upon heating at 300Â°C. The results demonstrate the importance of protective layers in thermochromic windows for practical application.
Place, publisher, year, edition, pages
2014. UNSP 012005- p.
, Journal of Physics Conference Series, ISSN 1742-6588 ; 559
Condensed Matter Physics Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-237113DOI: 10.1088/1742-6596/559/1/012005ISI: 000346420600005OAI: oai:DiVA.org:uu-237113DiVA: diva2:766395
INERA Workshop on Transition Metal Oxides as Functional Layers in Smart windows and Water Splitting Devices / Parallel session of the 18th International School on Condensed Matter Physics, sep 04-06, 2014, Varna, Bulgaria
FunderEU, European Research Council, 267234