Electrochromism of Sn-modified WO3 electrodes prepared from sol-gel method

Hyo Jin Ahn, Hee Sang Shim, Yung Eun Sung, Tae Yeon Seong, Won Bae Kim

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Effects of SnO2 addition on the structural, electrochemical, and electrochromic properties of WO3 electrodes were investigated, in which both the WO3 and SnO2 - WO3 were synthesized via a sol-gel method. The SnO2 - WO3 composite electrode, whose chemical states were identified through X-ray photoelectron spectroscopy analysis, gave the optical modulation of 38.3-99.5% and faster response times of 0.7 and 3.3 s. The coloration efficiencies of the SnO2 - WO3 electrode were greater (49.7 cm2 C-1) by 14% than the WO3 alone, together with the improved memory effect and durability during the electrochromic cycling tests up to 300 cycles.

Original languageEnglish
Pages (from-to)E27-E30
JournalElectrochemical and Solid-State Letters
Issue number12
Publication statusPublished - 2007

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering


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