Tungsten oxide powder has photochromic property, and therefore it may be applied for producing heat insulation coating. Tungsten oxide also has electrochromic property, and thus it is necessary to study methods for improving its discoloration property.
Introducing Nanostructure to Enhance Electrochromic Property of Tungsten Oxide
The introduction of nanostructure is a method to effectively improve the discoloration performance of tungsten oxide. And it has been widely concerned in experiments. Most commonly, tungsten oxide used are nanocrystalline or crystalline structures with nanopores, such as nanorods, nanowires and nanotubes.
The introduction principle of nanostructure is similar to that of doping. The rough surface of the nano-mesh crystal and the dense pores inside tungsten oxide are help to increase the transmission channel, accelerate ion diffusion and shorten the migration path, so as to improve the discoloration performance of tungsten oxide. At the same time, the dense and stable crystalline structure can ensure the dissolution loss of the electrochromic layer to the ion conductive layer while prolonging the service life of the device. Also, the chemical stability is ensured as well.
More details, please visit:
http://www.tungsten-powder.com/tungsten-oxide.html
