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Toward simplified electrochromic devices using silver as counter electrode material
Language
en
Article de revue
This item was published in
ACS Applied Materials & Interfaces. 2019-08-16, vol. 11, n° 37, p. 34030-34038
Washington, D.C. : American Chemical Society
English Abstract
Novel design of electrochromic devices (ECDs) known for their ability to modify optical properties under an applied voltage, based on a minimization of the number of layers is reported. The use of a metallic electrode, ...Read more >
Novel design of electrochromic devices (ECDs) known for their ability to modify optical properties under an applied voltage, based on a minimization of the number of layers is reported. The use of a metallic electrode, playing the role of both the conductive layer and the counter electrode, allows us to simplify the assembly of a commonly five-layer battery-type device to four-layer ECD. Further minimization of the number of layers is achieved using a conductive and electrochromic material. The novelty of the device configuration is illustrated using poly(3,4-ethylenedioxythiophene) (PEDOT)-based materials as EC layer, lithium-based ionic liquid as electrolyte, and Ag as counter electrode. Such a four- or three-layer ECD deposited on paper substrate switches from light to deep blue in a narrow 0.7 V voltage window. Preliminary investigations of the mechanism indicate traces of Ag on the PEDOT layer upon cycling. Finally, the printed ECD is successfully activated using a mobile phone.Read less <
English Keywords
Electrochromic Displays
Silver layer
PEDOT
Device Architecture
Optical modulation
ANR Project
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Origin
Hal imported
