Electrochromic thin films coated from peroxo-polymolybdotungstate solutions

Sanae Takano; Akira Kishimoto; Koichiro Hinokuma; Tetsuichi Kudo

doi:10.1016/0167-2738(94)90385-9

Electrochromic thin films coated from peroxo-polymolybdotungstate solutions

Sanae Takano, Akira Kishimoto, Koichiro Hinokuma, Tetsuichi Kudo

Research output: Contribution to journal › Article › peer-review

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 (λ_max). Kinetic aspect of such electrochromic films will also be dicussed.

Original language	English
Pages (from-to)	636-641
Number of pages	6
Journal	Solid State Ionics
Volume	70-71
Issue number	PART 1
DOIs	https://doi.org/10.1016/0167-2738(94)90385-9
Publication status	Published - 1994
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Electrochromic thin films coated from peroxo-polymolybdotungstate solutions",

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.",

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AU - Takano, Sanae

AU - Kishimoto, Akira

AU - Hinokuma, Koichiro

AU - Kudo, Tetsuichi

PY - 1994

Y1 - 1994

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AB - 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.

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Electrochromic thin films coated from peroxo-polymolybdotungstate solutions

Abstract

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