German and Spanish researchers developed a solvent-free 10-minute vacuum process that produces perovskite-silicon tandem solar cells at 24.3% efficiency, offering a scalable path to lower-cost sol...

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The original was posted on /r/technology by /u/Alternative_Way_4528 on 2026-05-21 14:15:54+00:00.

Original Title: German and Spanish researchers developed a solvent-free 10-minute vacuum process that produces perovskite-silicon tandem solar cells at 24.3% efficiency, offering a scalable path to lower-cost solar manufacturing.