The tungsten trioxide nano-film is attracting much attention as it can be used to assemble an electrochromic device for applying to energy saving reconstruction of building. Well, do you know how to prepare such a WO3 nano film? Some experts have proposed a method for preparing highly ordered tungsten trioxide nano-film.
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The experts oxidize tungsten plates to form small WO3 seeds. Then, a hydrothermal reaction is used to directionally grow WO3 nanosheets on the surface of a metal tungsten substrate through the action of a polyethylene glycol crystal growth director and sodium tungstate crystal growth material, thereby forming a highly ordered tungsten trioxide thin film material. In addition, experts introduced that the microstructure and properties of tungsten oxide thin films depend on the preparation method and process parameters. The tungsten oxide thin films obtained by different preparation methods have large differences in terms of crystal form and microstructure.
