• English
    • français
  • English 
    • English
    • français
  • Login
View Item 
  •   Repository Home
  • Research Papers (RP)
  • RP-School of Pure and Applied Sciences
  • RP-Department of Physics
  • View Item
  •   Repository Home
  • Research Papers (RP)
  • RP-School of Pure and Applied Sciences
  • RP-Department of Physics
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

In situ measurements of thickness changes and mechanical stress upon gasochromic switching of thin MoOx films

Thumbnail
View/Open
Full text (406.3Kb)
Date
2004
Author
Okumu, J.
Koerfer, F.
Salinga, C.
Wuttig, M.
Metadata
Show full item record
Abstract
Thin films of MoOx coated with platinum as a catalyst were prepared by dc magnetron sputtering from a molybdenum target in an oxygen and argon atmosphere. The films were colored and bleached by exposure to diluted hydrogen gas and air, respectively. In situmeasurements of x-ray reflectance and substrate curvature were performed during switching cycles. Upon hydrogen exposure a remarkable thickness decrease of 11% and a density increase of 6.5% are observed by x-ray reflectance measurements. Corresponding changes in optical transmittance and mechanical stress up to several hundreds of MPa are also observed. These changes are not fully reversible as revealed by measurements of multiple switching cycles. Both the change of thickness and density, as well as the change of optical transmittance and mechanical stress can be explained by the existence of a mixed phase of edge and corner sharing MoO3 octahedra whereupon the first coloration the ratio between edge and corner sharing octahedra is changed.
URI
http://scitation.aip.org/docserver/fulltext/aip/journal/jap/95/12/1.1728309.pdf?expires=1417078372&id=id&accname=2099573&checksum=793666213EADECF6801C27031D7E7633
http://ir-library.ku.ac.ke/handle/123456789/11768
Collections
  • RP-Department of Physics [100]

Designed by Library ICT Team copyright © 2017 
Contact Us | Send Feedback

 

 

Browse

All of RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

LoginRegister

Designed by Library ICT Team copyright © 2017 
Contact Us | Send Feedback