Structural and electrochromic properties of sol-gel made tantalum oxide and tungsten oxide films

E. Ö Zayim*, F. Z. Tepehan

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

Tantalum oxide and tungsten oxide thin films were prepared by spin coating techniques. The effect of tantalum concentration on the optical, structural and electrochromic properties of the films were studied. The optical, structural and electrochromic properties of pure, WO3, Ta2O5 and Ta2O5 doped WO3 thin films are described and compared to each other. Film characterization was made by cyclic voltammetry (CV) and scanning electron microscopy (SEM). The coatings were studied electrochemically in 1 M LiClO4 in propylene carbonate electrolytes. Electrochemical and optical characterizations show that the tantalum concentration affects the properties of sol-gel derived films significantly. Mechanical tests show that tantalum oxide films resist to abrasion well.

Original languageEnglish
Pages (from-to)435-438
Number of pages4
JournalKey Engineering Materials
Volume264-268
Issue numberI
DOIs
Publication statusPublished - 2004
EventProceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey
Duration: 29 Jun 20033 Jul 2003

Keywords

  • Electrochromism
  • Sol-gel
  • Structural properties
  • Tantalum oxide
  • Tungsten oxide films

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