As it is known, silicon has been used in solar panels and solar cells for a long time. Standing out with its low cost, durability and acceptable successful efficiency, silicon is the industry standard. However, the relatively new perovskite solution is in intense competition with silicon for much higher efficiency.New efficiency record in solar panels
Although different types of solar panels made from these two materials are already competing in the industry, a team at Helmholtz Zentrum Berlin (HZB) has achieved the record in solar cell efficiency by combining the two materials. The perovskite and silicon-based solar cell developed by the team has achieved an efficiency of over 32 percent.
Perovskite/silicon-based solar cells outperform both materials, thanks to their ability to gather different parts of the solar spectrum. As it is known, perovskite captures blue light better, while silicon focuses more on red and infrared wavelengths. Thanks to the combination of the two, a wider spectrum area is covered.The final result obtained by combining these two materials is a 32.5 percent efficiency level. This new, independently verified record sits at the top of all currently developing photovoltaic technologies in the efficiency chart maintained and regularly updated by the National Renewable Energy Laboratory (NREL). The previous record was achieved a few months ago and had an efficiency of 31.25 percent. The year before, the values were at 30 percent.
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