Nanometer yellow tungsten oxide may be used to produce transparent thermal insulation material, more exactly, for producing transparent heat-insulating film. And therefore, it can be used on glass which requires high heat insulation and high light transmittance, such as, architectural glass, automobile glass, and the like.
Nano grain size yellow tungsten oxide is also an electrochromic material that can be used to produce electrochromic devices. The so-called electrochromic device is a device that utilizes the electrochromic effect of a substance, based on an electrochromic layer, supplemented by other related layers and structures. An electrochromic device controls optical properties such as optical transmission, absorption, reflectance and/or emittance in a continual but reversible manner on application of voltage. This property enables such device to be used for applications like smart glass, electrochromic mirrors, and electrochromic display devices. At present, these electrochromic devices have been industrialized as their material has the characteristics of wide viewing angle, low driving voltage, and no power consumption memory.
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