Improvement in electrochromic stability of electrodeposited nickel hydroxide thin film

Journal Article · Wed Jan 01 04:00:00 EST 1997 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1837373· OSTI ID:452218

Natarajan, C; Matsumoto, H; Nogami, G ^[1]

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1. Kyushu Inst. of Tech., Kitakyushu (Japan). Dept. of Electrical Engineering

The electrochromic nickel hydroxide thin film was anodically deposited from an aqueous solution. The effect of solution temperature, postheat-treatment temperature, and addition of cadmium on the electrochromic behavior (color/bleach durability cycle, response time, and coloration efficiency of the nickel hydroxide films in NaOH) were investigated. A significant increase in the color/bleach durability cycle from 500 (for the as-deposited film) to more than 5000 cycles (for the heat-treated film) was observed. The addition of cadmium increased the utilization of the active materials. It was found that the coloration efficiency was 40 cm{sup 2}/C and coloration and bleaching response time were 20 to 30 s and 8 to 10 s, respectively. The change in the electrochromic properties with heat-treatment temperature is discussed based on the physical and electrochemical analysis.

• Sponsoring Organization: USDOE
• OSTI ID: 452218
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 1 Vol. 144; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
CADMIUM ADDITIONS
COLOR
ELECTROCHROMISM
ELECTRODEPOSITION
HEAT TREATMENTS
NICKEL HYDROXIDES
WINDOWS