uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • 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
Eliminating Electrochromic Degradation in Amorphous TiO2 through Li-Ion Detrapping
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.
2016 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 8, no 9, 5777-5782 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

The quest for superior and low-cost electroehromic (EC) thin films, for applications in smart windows, remains strong because of their large importance for energy-efficient buildings. Although the development of new EC materials for improved devices is important, diminishing or reversing degradation is another key issue, and electrical rejuvenation of degraded EC materials can offer new opportunities. Here we demonstrate that cathodically coloring EC thin films of TiO2, which normally suffer from ion-trapping-induced degradation of charge capacity and optical modulation upon extensive electrochemical cycling, can recover their initial EC performance by a rejuvenation procedure involving Li+ ion detrapping. Thus, the initial performance can be regained, and refreshed TiO2 films exhibit the same degradation features as as-deposited films upon prolonged electrochemical cycling. The rejuvenation was carried out by using either galvanostatic or potentiostatic treatments. Our study may open avenues to explore the recovery not only of EC materials and devices based on those but also for other ion-exchange-based devices.

Place, publisher, year, edition, pages
ACS, 2016. Vol. 8, no 9, 5777-5782 p.
Keyword [en]
smart windows, TiO2, electrochromism, ion-trapping, rejuvenation
National Category
Nano Technology Condensed Matter Physics
Research subject
Engineering Science with specialization in Solid State Physics
Identifiers
URN: urn:nbn:se:uu:diva-283772DOI: 10.1021/acsami.6b00457ISI: 000371945700007PubMedID: 26910644OAI: oai:DiVA.org:uu-283772DiVA: diva2:919660
Funder
EU, FP7, Seventh Framework Programme, 267234
Available from: 2016-04-14 Created: 2016-04-14 Last updated: 2017-11-30Bibliographically approved

Open Access in DiVA

fulltext(801 kB)95 downloads
File information
File name FULLTEXT01.pdfFile size 801 kBChecksum SHA-512
1bd8a998acfc8473b4c487cc9aa6c602ddefc4c4f3f0d6b6091a3a76d3a661f0ae5c25518dd46a3bd057acfd408c03da8e0e235f469773ad9baefcc69b01cbb8
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Authority records BETA

Wen, Rui-TaoNiklasson, Gunnar A.Granqvist, Claes G.

Search in DiVA

By author/editor
Wen, Rui-TaoNiklasson, Gunnar A.Granqvist, Claes G.
By organisation
Solid State Physics
In the same journal
ACS Applied Materials and Interfaces
Nano TechnologyCondensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 95 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
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 532 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • 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