Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Optical properties of amorphous tungsten oxide films: Effect of stoichiometry
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (fasta tillståndets fysik)ORCID iD: 0000-0002-8279-5163
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, Ion Physics. (jonfysik)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
2008 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 100, no 8, p. 082023-Article in journal (Refereed) Published
Abstract [en]

The optical properties of sputter deposited amorphous tungsten oxide films have been measured in-situ during slow electrochemical cycling in a lithium containing electrolyte. Amorphous films exhibit coloration under Li insertion and bleaching under Li extraction. Substoichiometric films show almost reversible optical changes already in the first electrochemical cycle and are completely reversible thereafter. Tungsten oxide films sputtered in a large excess of oxygen were found to be slightly overstoichiometric, as determined by Rutherford Backscattering Spectrometry. They exhibit irreversible charge transfer and coloration in the first cycle. Thereafter they cannot be completely bleached and exhibit transmittance contrast between coloured and partially bleached states. The irreversible colouration of the stoichiometric films is associated with a feature at 2.6 to 2.9 eV vs. Li in electrochemical measurements. Possible chemical reactions giving rise to this behaviour are discussed.

Place, publisher, year, edition, pages
2008. Vol. 100, no 8, p. 082023-
National Category
Condensed Matter Physics Engineering and Technology
Research subject
Ion Physics
Identifiers
URN: urn:nbn:se:uu:diva-111089DOI: 10.1088/1742-6596/100/8/082023ISI: 000275655200301OAI: oai:DiVA.org:uu-111089DiVA, id: diva2:279369
Available from: 2011-09-23 Created: 2009-12-03 Last updated: 2017-12-12Bibliographically approved

Open Access in DiVA

fulltext(228 kB)443 downloads
File information
File name FULLTEXT02.pdfFile size 228 kBChecksum SHA-512
83831118b10232ba4de4814e46144e0206aa5ecc05b742dc58d0a96d3248312719726e1c0a52cc90c15cafa235dc93c9d0cd910eb0bf6aef8f0e2364b6f75496
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Niklasson, Gunnar A.Possnert, Göran
By organisation
Solid State PhysicsIon Physics
In the same journal
Journal of Physics, Conference Series
Condensed Matter PhysicsEngineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 443 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 934 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf