Tungsten trioxide may be tungsten trioxide nanopowder, and heat insulating window film may be electrochromic thin film. Experts say that a very effective way to improve electrochromic properties such as coloration efficiency and cycle stability is to form nanostructures. And it is the result of advances in materials synthesis technology.
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According to experts, nanomaterials can regulate the diffusion path and ion migration distance of electrolyte in WO3 electrochromic thin films, which can adjust the electrochemical process to some extent. In addition, optical contrast may also be affected because nanostructures can produce multiple and high specific surface or interface regions. Wherein optical contrast refers to the difference in density of adjacent tissues on X-ray photographs. All in all, tungsten trioxide nano particles are good electrochromic materials for preparing heat insulating window films. And these prepared smart films will be applied in building glasses or automotive glasses to reduce room temperature in hot summer, thereby saving energy.
