Metamaterial Cools without Water or Energy

Sep-12-17 Researchers have created an innovative metamaterial able to cool objects even in direct sunlight without using water or energy.

The material, from a team at the University of Colorado Boulder, is able to reflect almost all solar energy back to the atmosphere while also shedding its own heat at infrared thermal radiation. Made of a glass-polymer hybrid, the metamaterial measures only 50 microns thick and can be commercially manufactured on rolls, which means it could be scaled up for large-scale applications.

According to co-author Gang Tan, “Just 10 to 20 square meters of this material on the rooftop could nicely cool down a single-family house in summer.”

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