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Many high-performing hybrid perovskite solar cells contain water-dissolvable lead, raising concerns over potential leakage from damaged cells. A new technique to sequester the lead used to make the cells could make them more practical for use in photovoltaic technologies.
Developed by researchers at Northern Illinois University (NIU) and the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL), the technique involves the application of lead-absorbing films to the front and back of the solar cell to minimize potential toxic leakage. “In the event of a damaged cell, our device captures the great majority of the lead, preventing it from leaching into groundwater and soils. The films that we use are…READ MORE