Lead-Free Solar Cells
Scientists at Fudan University Debut Lead-Free, Eco-Friendly Solar Cells
Kanesa D — October 23, 2025
A group of Chinese researchers has developed a tin-based solar cell that matches the performance of traditional lead-based versions—without the environmental or health concerns. This represents a significant step forward in sustainable energy technology and reduces the impact of toxic lead found in perovskite solar cells.
According to a study published in Nature and reported by WAM, a team from Fudan University created a lead-free perovskite solar cell with a record efficiency of 17.7%, the highest ever achieved for this type of material.
Experts believe this innovation could accelerate the adoption of perovskite solar technology in everyday life, from building-integrated solar panels and wearable power devices to vehicle rooftops and off-grid clean energy systems. Because it avoids toxic materials, the new solar cell is especially ideal for technologies that require close contact with people.
