According to foreign media New Atlas, there are currently energy-efficient 'smart glasses' that can mask the heat rays from the sun in some ways, thereby reducing the need for operating air conditioning systems. However, such systems still need electricity to operate. Now, from Australia Scientists at Royal Melbourne Institute of Technology have developed a coating that can make existing glass smart and without electricity.
The self-regulating coating consists of relatively inexpensive vanadium dioxide, which is only 50-150 nanometers thick. This is about 1000 times thinner than a human hair.
At surface temperatures below 67°C, vanadium dioxide acts as an insulator, helping to prevent the heat in the room from being emitted through the glass - while also allowing the entire spectrum of the sun to enter the entire spectrum from the outside. However, at temperatures above 67°C At temperature, it transforms into a metal that blocks heat-induced infrared solar radiation.
This means that when the temperature is low, the room will be warmer, but at higher temperatures, the room will be cooler, which will reduce the use of heating and air conditioning systems. In addition, the user can also use the dimmer switch to cover the coating. Layer light blocking effect.
Previously, in order to apply the vanadium dioxide coating, a special layer or platform had to be created on the surface. However, the RMIT team has developed a method to coat the coating directly on the surface of the glass without the need for a platform. Now the research team Hope that the system can be commercialized as soon as possible.
Chief scientist Professor Madhu Bhaskaran said: 'Our technology will likely reduce the rise in the cost of air conditioning and heating, and significantly reduce the carbon footprint of various buildings. Our energy crisis solution not only comes from renewable energy, but also eliminates energy waste. Smart technology is absolutely crucial. '
The results of this research were recently published in the "Science Report" magazine.
