Hydrated Tungsten Oxide Applied for Electrochromic Film

Hydrated tungsten oxide, like tungsten oxide, can be applied for the preparation of electrochromic film. Experts say that the crystal water in the hydrated WO3 crystal lattice can provide a faster transmission path for ion transport, so it tends to exhibit superior electrochromic properties. And therefore it has become the focus of current research.

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Experts also said that if the prepared hydrated tungsten oxide has good crystallinity, it also has good consistency and stability. Although the presence of crystal water in the actual application tends to cause the generation of bubbles in the device, this problem will surely be solved with the deepening of research on water-based electrolytes. In addition, among many crystal phases of tungsten trioxide, the hexagonal phase WO3 lattice has a one-dimensional ion channel, which facilitates ion transport and diffusion, so its electrochromic performance is also relatively good. In other words, the hydrated WO3 and hexagonal phase WO3 are all have good electrochromic properties.

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