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Window Film Could Even out the Indoor Temperature using Solar Energy

Image showing the technology
The molecule captures energy from the sun and releases it later as heat. Illustration: Yen Strandqvist / Chalmers

A window film with a specially designed molecule could be capable of taking the edge off the worst midday heat and instead distributing it evenly from morning to evening. The molecule has the unique ability to capture energy from the sun’s rays and release it later as heat. This is shown by researchers at Chalmers University of Technology, Sweden, in the scientific journal Advanced Science.

On sunny summer days it can be little short of unbearable to stay indoors or in cars. The heat radiates in and creates an unpleasantly high temperature for people, animals and plants...

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