Solar panel with tin perovskite - efficient and environmentally friendly

In the journal Nature Photonics published an article on the development of a new solar cell based on tin perovskite. Its developers claim that in terms of efficiency, it can overtake its lead counterparts, as well as provide high efficiency during the conversion of solar energy into electricity.

The cell is a kind of sandwich of 5 layers: a thin gold film, a hollow layer for transportation, electrically conductive glass, tin perovskite and titanium dioxide. Perovskite structures have long been used to produce solar energy with 15 percent efficiency, but until recently they were created on the basis of lead. The new tin cell not only can compete on equal terms with lead cells, but even surpasses them.

According to experts, the new device can be produced so cheaply and easily that it can serve as a significant breakthrough in solar energy. Robert Chang notes that the tin-based perovskite gasket, located between two electrically conductive layers that convert solar energy into electricity, quite efficiently absorbs sunlight.

According to the results of experiments, the tin solar panel showed an efficiency of slightly below 6%. Experts believe that this is a good indicator to start with, given that the new cell absorbs most of the visible light spectrum. In addition, perovskite salt is able to dissolve and recover after removing the solvent without heating.

Mercuri Kanatzidis hopes that many scientists will be interested in this work and will be able to improve the methods of developing such cells. According to forecasts, the new material could reach an efficiency of more than 15%, which is the limit for lead perovskite cells in use today. Lead and tin are in the same group in the periodic table, so at least similar results are expected. Finally, this battery is environmentally friendly, unlike lead, so it may well expand the use of solar energy.









Source: alternativenergy.ru