Electrochromic thin films coated from peroxo-polymolybdotungstate solutions

Sanae Takano, Akira Kishimoto, Koichiro Hinokuma, Tetsuichi Kudo

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Peroxo-polymolybdotungstates are formed by the direct reaction of a mixture of metallic Mo and W (for example, 5:5 mixture) with hydrogen peroxide solution. A homogeneous and amorphous thin film (0.4 microm, typically) is fabricated on an ITO glass substrate by spin-coating using such a solution. After heat-treatment at 120°C, it exhibits electrochromism excellent in both reversibility and response time in an organic Li-electrolyte. The film colored at -1 V (versus Ag/AgCl) shows rather flat absorption spectrum. Its color is dark grayish blue and the ΔOD between -1 and +0.5 V reaches 0.7 at 670 nm (λmax). Kinetic aspect of such electrochromic films will also be dicussed.

Original languageEnglish
Pages (from-to)636-641
Number of pages6
JournalSolid State Ionics
Volume70-71
Issue numberPART 1
DOIs
Publication statusPublished - 1994
Externally publishedYes

Fingerprint

Electrochromism
electrochromism
ITO glass
Thin films
Spin coating
Amorphous films
thin films
ITO (semiconductors)
hydrogen peroxide
Hydrogen peroxide
Hydrogen Peroxide
Electrolytes
coating
Absorption spectra
heat treatment
Heat treatment
electrolytes
Color
absorption spectra
color

ASJC Scopus subject areas

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Electrochromic thin films coated from peroxo-polymolybdotungstate solutions. / Takano, Sanae; Kishimoto, Akira; Hinokuma, Koichiro; Kudo, Tetsuichi.

In: Solid State Ionics, Vol. 70-71, No. PART 1, 1994, p. 636-641.

Research output: Contribution to journalArticle

Takano, Sanae ; Kishimoto, Akira ; Hinokuma, Koichiro ; Kudo, Tetsuichi. / Electrochromic thin films coated from peroxo-polymolybdotungstate solutions. In: Solid State Ionics. 1994 ; Vol. 70-71, No. PART 1. pp. 636-641.
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