A new transparent coating, cooling the solar panels

It turns out that every time you walk under direct sunlight, your top heating radiates heat into space as infrared light. This phenomenon is used by engineers from Stanford University to develop a new transparent coating that reflects from the solar panel the heat, cooling it and in parallel contributing to the increase in the coefficient of conversion of photons into electricity.





According to engineers, the new coating has already been tested on the roof at Stanford University, solves a problem that has long hindered the further development of solar energy: solar panels, greatly heated by the action of sunlight, become less efficient at converting light photons into usable electricity.

The new coating is a thin, crystalline material of silica, which is placed on top of a traditional solar cell. The material is transparent to visible sunlight, which is absorbed by the photovoltaic element, but captures and emits thermal radiation from infrared rays.

Testing of the new material was performed on a custom-made suntrap device that simulates the properties of a solar cell without the production of electricity. According to the test results, the clear coating is allowed to cool solar cells by as much as 23 degrees Fahrenheit (5 degrees Celsius). This in turn has improved the performance of typical solar cells made from crystalline silicon 1 percent.

The researchers also noticed that the new transparent thermal lining are more efficient in dry, clear weather. This means that they are applicable exactly where you are most commonly installed solar power. In addition, the new material easily massturbate to the required production purposes and sizes, and can be made with fairly common technology of 3D printing is stereolithography. published

 

P. S. And remember, only by changing their consumption — together we change the world! ©

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Source: www.cheburek.net