The photovoltaic modules made with solar cells in Perovskite have reached a significant goal in the race for renewable energies: After a year of exposure continues to the external environment, their efficiency did not show Cali. The results emerge from a study conducted by an international team of scientists, coordinated by the Fraunhofer Institute for Solar Energy Systems (ISE) in Germany.
The study, recently published on Nature Energyshows that these solar modules, protected by an advanced encapsulation system, can bear real environmental conditions – including rain, wind, intense sun radiation and temperature changes – maintaining their stable performance over time.
Innovative encapsulation protects perovskite and stabilizes performance
One of the key factors of this success is represented by the encapsulation system developed to protect the cells. The research team used a lamination technique similar to that used in silicon panels, inserting the cells in An ethylene vinyl acetate (Eva) film And enclosing them between two glass slabs, one of which covered with a thin layer of transparent conductive oxide.
This approach allowed to prevent the penetration of humidity and oxygenmain enemies of Perovskite, significantly improving the operational stability of the devices. The tests took place in different locations, including Freiburg (Germany), and included modules installed on inclined roofs, therefore exposed in realistic conditions and not only in the laboratory.
Until today, Poor outdoor stability was one of the main obstacles to large -scale adoption solar cells in Perovskite. Although already promising in terms of efficiency and costs, these cells were too vulnerable to humidity, heat and UV rays. However, the results obtained by this new study suggest that these problems can be overcome with targeted engineering solutions.
In addition, researchers say that Production costs remain competitiveand that the methods used for encapsulation could be easily integrated into the existing production lines. This makes technology potentially scalable and commercially attractive.
Currently, some prototypes are already in the advanced test phase even in tropical and desert environments, which indicates the will of the sector to bring Perovskite from the laboratory to the global market within a few years.
