Electrochromic active layers from ultrathin nanowires of tungsten oxide

Brian Moshofsky, Taleb Mokari

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Electrochromic devices have benefited from the use of nanocrystalline films of particles to improve upon coloration and bleaching times while simultaneously enabling the use of solution based film making processes. In this work, electrochromic properties of ultrathin nanowires of substoichiometric tungsten oxide deposited on ITO via electrophoretic deposition are studied. These films show large coloration changes with very rapid coloration and bleaching times of 4.1 and 2.9 seconds respectively for an optical density change of 0.58 using H+ as the charge-balancing ion. These fast switching times are due to the combination of fast diffusion of ions into the narrow diameter wires and density control of the film through the deposition process. We also show good film stability over 300 colour-bleach cycles. This development not only advances the potential of WOx films in display applications, but can also improve their performance in smart windows. This journal is

Original languageEnglish
Pages (from-to)3556-3561
Number of pages6
JournalJournal of Materials Chemistry C
Issue number18
StatePublished - 14 May 2014

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry


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