Electrochromic properties of spray deposited TiO 2 -doped WO 3 thin films

P. S. Patil, S. H. Mujawar, A. I. Inamdar, S. B. Sadale

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Abstract

TiO 2 -doped WO 3 thin films were deposited onto fluorine-doped tin oxide coated conducting glass substrates using spray pyrolysis technique at 525 °C. The volume percentage of TiO 2 dopant was varied from 13% to 38%. The thin film samples were transparent, uniform and strongly adherent to the substrates. Electrochromical properties of TiO 2 -doped WO 3 thin films were studied with the help of cyclic voltammetry (CV), chronoamperometry (CA) and chronocoulometry (CC) techniques. It has been found that TiO 2 doping in WO 3 enhances its electrochromic performance. Colouration efficiency becomes almost double and samples exhibit increasingly high reversibility with TiO 2 doping concentrations, in the studied range.

Original languageEnglish
Pages (from-to)117-123
Number of pages7
JournalApplied Surface Science
Volume250
Issue number1-4
DOIs
StatePublished - 31 Aug 2005

Keywords

  • Electrochromism
  • Spray pyrolysis
  • Thin films
  • TiO
  • WO

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