University of Luxembourg studies solar cell attenuation impact on solar panel industry

The Institute of Photovoltaics at the University of Luxembourg has established a method of observing and preventing the decay of solar cells before they are completed. Since the discovery of chemicals that could damage solar cells, this method has rapidly affected the solar cell manufacturing industry.

The reason why solar panels can convert solar energy into electricity is because there are solar cells - this "electric generator" is responsible for the energy of solar panels. Although thin-film solar cells have a layer responsible for absorbing the amount of solar energy, the thin films can be attenuated during the production process.

“A solar thin-film battery is a stack of multilayer films. The most important one is to absorb sunlight and convert it into electricity. If these absorbers cannot be processed immediately, they will lose their ability to partially convert light energy.” Luxembourg University of Phoenix Institute researcher David said.

The researchers used laser light to measure the light on the solar cell and found that the attenuation appeared within a few minutes after the first irradiation. At the same time, they also discovered that attenuation can be prevented by rapidly irradiating another laser beam. This will make solar cells stable.

In the photovoltaic industry, solar cells are processed at high speed due to economic needs. Now scientists point out the reasons for physics, why the production process should be completed quickly.