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this post was submitted on 15 Jun 2024
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This is the best summary I could come up with:
Longi said today at the SNEC tradeshow in Shanghai, China, that it has achieved a power conversion efficiency of 34.6% for a perovskite-silicon tandem solar cell.
The European Solar Test Installation (ESTI) has certified the results, which represent a world record for this cell typology.
The previous record was held by Longi itself, which achieved an efficiency of 33.9% in November.
“We achieved this result by optimizing the thin film deposition process of the electron transport layer, developing and using high-efficiency defect passivation materials, and designing and developing high-quality interfacial passivation structures,” the company said in a statement, without providing further details.
The European Solar Test Installation (ESTI) certified the results, which represented a significant increase on its previous 31.8% efficiency rating, which was announced during last year's SNEC edition.
Longi has broken the world record for solar cell efficiency 16 times since April 2021.
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