Researchers develop a cost-effective method for making smart windows, according to a study conducted on March 8, 2018.
Building energy is conserved by smart windows, as it switches from clear to tinted, controlling heat and light from the sun. Energy loss due to conventional windows is high compared to the smart window technologies. Although smart window technologies reduce energy loss, making these windows less expensive still remains a challenge. To make glass materials that alter color in response to electricity, a new method was found by Wei Cheng, lead of this project. In this method, a liquid solution which contains a metal ion was deposited onto the glass initially. Then, using UV rays, it is transformed into a film, which acts as a glass coating. This transparent film turns blue when electricity is passed through it.
Currently, making of smart windows cost about US$ 500 to US$ 1,000 per-square-meter, which is much higher than the cost of a conventional glass window. Using this new method, smart windows can be manufactured at a lower cost. Cheng said, “Another advantage of our method is that it is compatible with many different metals and it is scalable. We are excited to potentially fine-tune the dynamic properties of the materials to improve performance even further and make large windows for commercial use.”
Researchers are still continuing their work to make larger windows so as to prove their new method. Manufacturing of smart windows using this new method is expected to increase the growth of Electrochromic Glass Market, as elaborated in the electrochromic glass market report published by Coherent Market Insights.