Miroir electrochimique reversible a reflexion diffuse
2000
L'invention concerne un dispositif de miroir electrochimique reversible, comprenant une premiere electrode (106) sensiblement transparente a surface texturee, et une seconde electrode (110) repartie dans des zones localisees. Une solution electrolytique (112) placee entre les premiere et seconde electrodes contient des ions (116) d'un metal pouvant etre depose pa electrolyse sur les electrodes. Un potentiel electrique negatif applique sur la premiere electrode provoque la dissolution du metal depose sur la seconde electrode dans la solution electrolytique et un depot electrolytique de la solution sur la surface texturee de la premiere electrode, affectant ainsi la propagation du rayonnement electromagnetique a travers le dispositif. Because of the textured surface, light striking the first electrode is diffusely reflected, making the device desirable for architectural and automotive glass applications. A surface modification layer (108) applied to the first electrode ensures that the electrodeposit is substantially uniform. A positive electrical potential applied to the first electrode causes deposited metal to be dissolved from the first electrode and electrodeposited from the solution onto the second electrode, thereby decreasing the reflection of radiation by the device.
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