Electrodeposited Films from Aqueous Tungstic Acid-Hydrogen Peroxide Solutions for Electrochromic Display Devices

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概要

• 論文の詳細を見る

• Electrodeposited tungsten oxide films from aqueous tungstic acid-hydrogen peroxide solutions were investigated for applications to electrochromic devices. These films exhibited electrochromism in aprotic electrolyte solutions containing Li-salts. When the films were heat-treated for an hour at temperatures between 100 and 200℃, the electrochromic reactions were rich in reversibility. The coloring efficiency and response rate for the films were favorable and comparable to those for tungsten trioxide evaporated films. A cell life-test was performed on several clock-size cells by applying a 1.2-V, 1-Hz, continuous square wave. The typical amount of charge required for coloration was about 50 C / m^2 and remained unchanged even after 10^7 coloration-bleaching cycles.

• 社団法人応用物理学会の論文
• 1987-11-20

著者

• Yamanaka Kazusuke

  Central Reseach Laboratory Hitachi Ltd.

関連論文

• Peroxotungstic Acid Coated Films for Electrochromic Display Devices
• The Electrochromic Properties of Thermally Decomposed Films of an Organic Tungsten Compound
• Tungsten Trioxide/Liquid Electrolyte Electrochromic Devices with Amorphous Iron Tungstate Counter Electrodes : Response Characteristics and Cell Reliability
• Photo-Electrochemical Effects of WO_3 Electrochromic Devices
• Electrodeposited Films from Aqueous Tungstic Acid-Hydrogen Peroxide Solutions for Electrochromic Display Devices

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