A Canadian research team reported in the latest issue of the British Chemical that they have developed a simple, low-cost technology that promises to make large-scale, color-changing, energy-saving glass. Energy-saving glass can be changed between transparent and colored according to the needs of buildings and households, dynamically adjust the light and heat from the sun, and save energy for buildings.
A new technology invented by the University of British Columbia’s research team applied ethanol with metal ions on the glass surface and converted it to a film on glass using ultraviolet light. The results showed that the membrane was completely transparent under normal conditions but turned blue when the current passed.
Cheng Wei, the first author of the paper, told the Xinhua News Agency reporter that the technology does not use complicated vacuum equipment to make dynamic coatings and does not need to be prepared at high temperatures, thereby reducing costs.
Cheng Wei said that the team next plans to study how to make the glass transition between transparent and gray instead of blue.
Although the current electrochromic glass is energy-saving, its preparation cost is relatively high, as high as 500 to 1,000 US dollars per square meter, which is much higher than the cost of ordinary glass.
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