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A comment on World record back at HZB: Tandem solar cell achieves 32.5 percent efficiency. Parent comment

Re:World record back at HZB: Tandem solar cell achieves 32.5... by wnevets on Monday December 19, 2022 @03:15PM (#34057049)
> Various teams from HZB had achieved a record value in late 2021 with an efficiency of 29.8%

edit: the chart from the article is great at showing the progress

https://www.helmholtz-berlin.de/pubbin/news_datei?did=15092

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