These advanced solar cells have an antique source: old bullets
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Perovskite solar cells (example pictured), which convert sunlight to electricity with high efficiency, are made using a toxic compound called lead iodide. Credit: Dennis Schroeder/NREL/US Department of Energy/SPL
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A two-step process transforms hazardous lead waste into a useful material for solar panels1.
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doi: https://doi.org/10.1038/d41586-026-01001-0
References
- Sytnyk, M. et al. Cell Rep. Phys. Sci. https://doi.org/10.1016/j.xcrp.2026.103207 (2026).
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