CEA-INES, Enel achieves 27.1% efficiency for tandem perovskite-silicon solar cell



CEA-INES researchers and Enel have developed a new solar cell with an active surface area of ​​9 cm² and an open circuit voltage of over 1,900 mV. Their results improved on the 26.5% efficiency achieved in March for similar cells.

The device, which has an active area of ​​9 cm², has an open-circuit voltage of more than 1,900 mV, CEA-INES said, noting that the device improvement was again due to “shading correction.” It did not disclose other technical details.

“CEA and 3SUN had already presented first-class results in April 2022 with 24.9%, then 25.8% in December 2022 and 26.5% in March 2023 for the same PIN architecture tandem cell,” CEA-INES said in a statement. .

Enel Green Power, through its 3Sun unit, is investing in an n-type heterojunction cell (HJT) with an efficiency of 25.5% in a new 3 GW solar module factory now under construction in Catania, southern Italy. It recently said that this could lead to module efficiencies of over 24%. From 2026, Enel Green Power plans to offer even more efficient solar modules based on tandem silicon-perovskite cells. The end products are said to reach an efficiency of about 30 percent.

CEA-INES and Enel Green Power have jointly developed DC/DC maximum power point tracking devices (MPPT). They said they are now also working on highly efficient bifacial PV panels. Additionally, they claim to have achieved 24.47% power conversion efficiency for a gallium-doped p-type heterojunction silicon solar cell in March 2022.

David is a passionate writer and researcher who specializes in solar energy. He has a strong background in engineering and environmental science, which gives him a deep understanding of the science behind solar power and its benefits. David writes about the latest developments in solar technology and provides practical advice for homeowners and businesses who are interested in switching to solar.

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