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Potentiostatic Rejuvenation of Electrochromic W,Ti Oxide Thin films.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. Hatay Mustafa Kemal University, Antakya, Turkey..
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
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2019 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Electrochromic W–Ti oxide thin films were prepared by reactive DC magnetron sputtering and cycled voltammetrically in an electrolyte comprised of lithium perchlorate in propylene carbonate. The films were degraded  for up to 500 voltammetric cycles in thefor voltage ranges of 1.5–4.0, 1.6–4.0, 1.7–4.0 and 2.0–4.0 V vs. Li/Li+. The films were subjected to a potentiostatic rejuvenation at a constant voltage of 6 V for 20 h to accomplish ion de-trapping. Optical changes were recorded during the electrochemical degradation and rejuvenation. The degradation kinetics was parametrized by a power-law model based on dispersive chemical kinetics. The results showed that optical transmittance contrast between bleached and colored states was regained after the ion de-trapping. It was also found that Ti containing films were more stable than pure W oxide ones.

Place, publisher, year, edition, pages
2019. article id R P3.53
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
Identifiers
URN: urn:nbn:se:uu:diva-395212OAI: oai:DiVA.org:uu-395212DiVA, id: diva2:1361180
Conference
E-MRS Spring Meeting 2019. IUMRS-ICAM International Conference on Advanced Materials, Nice, France, May 27-31, 2019.
Available from: 2019-10-15 Created: 2019-10-15 Last updated: 2019-10-15

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