Tungsten trioxide powder may be used to prepare a new type of electrochromic smart glass that can play an important role in thermal insulation and energy conservation. And electrochromic glass is considered by experts to be the most promising energy-saving smart glass for large-scale commercial production. However, why is it better to choose electrochromic glass instead of photochromic glass, gaschromic glass or thermochromic glass as building energy-saving glass?
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This is because the electrochromic glass uses an applied electric field to discolor the material, thereby achieving active dynamic control of visible light and partial dynamic adjustment of transmittance of solar radiant energy. While photochromic, gaschromic, and thermochromic glass mainly use the material's sensitivity to light and heat to change color to achieve dynamic control of light, but it is still a passive control technology, and cannot really adjust the light according to people's needs, and there is no successful case for large-area glass windows for construction.
