Electrochromic smart window requires a WO3 film. A tungsten trioxide thin film, as the electrochromic layer material, allows the prepared smart window to change the solar radiation energy according to people's needs. According to experts, the electrochromic window was originally proposed by Lampert and Granquist.
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As you may have known, modern buildings often use large-area glass curtain walls to achieve lighting and aesthetics. However, these glasses of large area cause a significant load on air conditioner as they will result in heat accumulation in the summer and heat loss in the winter. While tungsten trioxide electrochromic window changes the optical properties of material by applying a direct current voltage or current to change the color of glass material, and controls the energy entering window by adjusting the reflection or transmission of incident light. Therefore, on the one hand, tungsten oxide electrochromic glass can keep the indoor light soft and keep the temperature suitable. On the other hand, it can meet the needs of modern building lighting and aesthetics. In pother words, tungsten trioxide smart window not only makes rational use of solar energy, but also reduces indoor air conditioning energy consumption, thereby saving energy.
