Electrochromism of nitrogen-doped tungsten oxide thin films

ATAK G., Pehlivan I. B., Montero J., Primetzhofer D., Granqvist C. G., Niklasson G. A.

Symposium M on Metal Oxide- and Oxyhydride-Based Nanomaterials for Energy and Environment-Related Applications of the E-MRS Fall Meeting, Warszawa, Poland, 01 September 2019, vol.33, pp.2434-2439 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 33
  • Doi Number: 10.1016/j.matpr.2020.01.332
  • City: Warszawa
  • Country: Poland
  • Page Numbers: pp.2434-2439
  • Keywords: Tungsten oxide, Electrochromism, Nitrogen-doping, Sputter deposition, Thin film, HYDRATED NIOY, EFFICIENCY
  • Hacettepe University Affiliated: Yes


Tungsten-oxide-based thin films were prepared by reactive DC magnetron sputtering in the presence of oxygen and nitrogen. Nitrogen contents up to 12 at.% were documented by Rutherford backscattering spectrometry and time-of-flight elastic recoil detection analysis. Optical and electrochemical measurements showed that films with up to 4 at.% of nitrogen were as transparent as undoped tungsten oxide films and displayed enhanced electrochromic properties manifested in an increase in the coloration efficiency by as much as 20%. (c) 2019 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the E-MRS Fall Meeting, 2019.