Journal
ELECTROCHEMISTRY
Volume 90, Issue 4, Pages -Publisher
ELECTROCHEMICAL SOC JAPAN
DOI: 10.5796/electrochemistry.22-00006
Keywords
Electrochromism; Silver; Manganese Oxide; Localized Surface Plasmon Resonance (LSPR)
Categories
Funding
- Japan Society for the Promotion of Science [17H06377, 15H03880, 19J21962, AS2915036S]
- Grants-in-Aid for Scientific Research [19J21962, 15H03880] Funding Source: KAKEN
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Utilizing MnO2 as the counter electrode material enabled the novel EC device to achieve both color retention and color representation, even without power supply.
Silver deposition-based electrochromic (EC) device enabled various optical states by using either the electrodeposition of silver thin films or silver nanoparticles on an indium tin oxide electrode. These optical states, including chromatic colors such as cyan, magenta, yellow, and green, are based on absorption by the localized surface plasmon resonance of silver nanoparticles. However, an ideal counter-reaction material that does not affect the color representation by silver nanoparticles and does not dissolve the deposited silver has not been reported. To achieve both color retention and chromatic color representation, MnO2 was utilized as the counter electrode material. The EC properties of the novel device with the MnO2 counter electrode were investigated in terms of charge density and its ability to change color. The novel EC device achieved both representations of chromatic color and retained its color without power supply. [GRAPHICS] .
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