On-device lead-absorbing tapes for sustainable perovskite solar cells

Perovskite solar cells are an emerging technology that could accelerate the energy transition to a sustainable future. However, the presence of toxic but inevitable lead poses environmental and health risks. Here we introduce on-device layers that could capture over 99.9% of leaked lead without compromising performance and operation. Perovskite solar cells are an emerging energy technology but their sustainability is jeopardized by the presence of Pb. Here the authors introduce on-device layers that could capture over 99.9% of leaked Pb.