Tungsten trioxide nanopowder is considered to be the most inorganic electrochromic material for large-scale application. According to experts, WO3 films can be used to assemble electrochromic devices with different structures and characteristics. These electrochromic devices enable a continuous, multi-color continuous change in transmittance and reflectance in the visible, infrared, and even microwave ranges.
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At the same time, the tungsten trioxide electrochromic device also has the characteristics of memory ding, low driving color change voltage and simple power supply. Besides, it is power saving and less affected by the environment, so it has a very broad application prospect. For example, such devices can be applied for building doors and windows and automobiles to play the role of heat insulation, heat preservation, energy saving and environmental protection. In addition, WO3 electrochromic device can also be used as a large area digital, text and image display device. And it can also be applied for image recording, information processing, optical memory, optical switches, holography, decorative materials and safety protection materials.
