Tungsten trioxide nanosheet can be used to prepare electrochromic film. Some experts have proposed a method for preparing a high photoelectricity tungsten oxide film, specifically:

Nanostructured tungsten trioxide can be prepared by a sputtering method, a hydrothermal method, a sol-gel method, a thermal evaporation method, a chemical vapor deposition method, an anodization method, or a template method.

Tungsten trioxide is an important inorganic photochromic material that has a good application prospect in smart windows. In addition, WO3 has a good application prospect in the fields of photocatalysis, large-screen display, and high-density information storage. And thus WO3 nano powder has attracted widespread attention of scientists.

Some experts have proposed a method for preparing a high photoelectric WO3 film, which is composed of monoclinic tungsten trioxide nanosheets. The specific steps are as follows:

Tungsten oxide film with high photoelectric property can be prepared by hydrothermal method. Among them, experts use hydrochloric acid and heteropoly acid to co-acidify. They found that the incorporation of a small amount of heteropolyacid during the acidification process can greatly improve the photoelectric properties of the prepared WO3 film. The specific steps of this method to prepare high photoelectric WO3 film are shown as below:

The expert introduced a method for preparing a tungsten trioxide film with high photoelectric property. The preparation method has the advantages of simple process and convenient operation. And the obtained WO3 thin film has good morphology, which is composed of monoclinic tungsten trioxide nanosheets. In a word, the prepared WO3 photoelectric film has high photoelectric performance, so it has wide application prospects.

The expert introduced a preparation method of tungsten trioxide nanometer array FTO conductive glass. The specific steps are as follows:

Tungsten trioxide nanometer array can be used to prepare electrochromic material, i.e., a transparent electrochromic film, which is typically used in electrochromic devices. It makes WO3 more and more concerned by the material industry. The following is a preparation method of tungsten trioxide nano array electrochromic film proposed by an expert, and the specific steps are as follows:

Tungsten trioxide nanometer array can be used to produce electrochromic film. And the prepared films are mainly applied to architectural smart windows with broad application prospects. The tungsten trioxide nano array electrochromic film can be prepared by the following steps:

WO3 nanometer array electrochromic film, which belongs to the field of nanotechnology, can be applied to smart windows. With the development of nanotechnology, the application of tungsten trioxide electrochromic film will be promoted. Therefore, the preparation of WO3 film is particularly important, the following are specific preparation steps: