This study introduces a fully solvent free approach and tests whether it can deliver the efficiency and stability needed for industrial solar manufacturing.
Key findings:
- Physical vapour deposition removes toxic solvents from production, reducing contamination and environmental risks
- The cell retained 97.06% of its initial efficiency after 6,800 hours, demonstrating strong long term stability
- The process offers a scalable route towards industrial manufacturing of next generation tandem solar cells
Read the full article here: https://www.ise.fraunhofer.de/en/press-media/news/2026/a-new-milestone-for-photovoltaics-solvent-free-tandem-solar-cells.html