Today solar panels are increasingly used in everyday life. However, this battery has one major disadvantage. You can say Achilles heel. It is warm. The fact that the more hot you become konechnye panel, the more decreases their efficiency due to heating of the elements and dissipating most of the energy. Therefore, many researchers are working to get rid of this drawback. Someone is trying to create an efficient cooling system, but the teaching of US went the other way. And their research can improve the efficiency of solar panels by 80%.
How to increase the efficiency of solar panels
Scientists from rice University want to solve the problem is highly non-trivial sposobom — transformation of heat to light, which can then be used to produce electricity. They say their study may eventually lead to the creation of solar panels that will be four times more effective than any commercially available solar cells.
Any hot surface emits light in the form of thermal radiation, says Gururaj Naik, associate Professor of electrical and computer engineering at rice University. The problem is that thermal radiation occurs in a wide range, and the conversion of light into electricity effectively only if the radiation is in a narrow range.
The research team came to the idea of using films of carbon nanotubes to create a “hyperbolic heat emitter” that can operate at temperatures up to 700 degrees Celsius. The device allows the electrons to move in one direction only. Squeezing photons emitted as heat. As a result, a light which then can be absorbed by the solar cell.
See also: Tesla launches powerful modular solar battery for energy storage.
In other words, there is a narrowing of the range of thermal radiation that ultimately allows to convert heat into light, which we will go further in the electricity production.
“Jamming” all available thermal energy in the small “spectral region” we can turn it into electricity. Theoretically, we can obtain up to 80% efficiency gain, as the heat from sunlight is not dissipated, as is the production of electricity.
When a new solar panel
At the moment, the development of scientists is only at an early stage, but all the theoretical calculations suggests that with the new approach can significantly uchenicite energy efficiency of solar panels. Dunn research published in the journal ACS Photonics. But scientists soon expect to begin testing its technology.
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