Tungsten oxide powder can be prepared into a tungsten oxide film with high electronic conductivity, ionic conductivity, large light modulation range, high coloring efficiency and good cycle stability, and then be used as an electrochromic layer for assembling large area electrochromic glass. And these smart glasses may be applied in the buildings and automobiles for heat insulation performance.
More details, please visit:
http://www.tungsten-powder.com/tungsten-oxide.html
Experts have introduced that tungsten oxide electrochromic film is a typical cathode coloring material. When a negative voltage is applied to such an electrochromic layer, the cation (H+, Li+) migrates into WO3 to change the valence state of the W atom, thus showing blue color. In addition, cations can also pass through the electrolyte layer and are supplied through the ion storage layer, which is the reaction mechanism of the complementary electrochromic device. In order to maintain the charge balance of the system, electrons migrate from the transparent conductive layer into WO3 through the circuit.
