Nano tungsten trioxide may be applied for preparing large area electrochromic device. It is reported that electrochromic thin films composed of tungsten trioxide nanorods may be used to assemble large-area electrochromic devices. As you may have known, nanorods are a type of nano material of typical one-dimensional nanostructure. In recent years, one-dimensional materials have been widely concerned as they may bring novel and excellent performance.
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A method of synthesizing monodisperse tungsten trioxide nanorods by colloidal chemistry has been reported. In colloidal chemistry, the morphology of nanomaterials can be well regulated by varying the concentration of surfactants. With the change of the particle size of tungsten trioxide nanorods constituting the film and the structural adjustment of tungsten trioxide film, its electrochromic properties are correspondingly affected, so that the electrochromic performance of the assembled large-area electrochromic device will also be affected by size of WO3 nanorod and structure adjustment of WO3 film.
