Researchers at the National Renewable Energy Laboratory (NREL) and Northern Illinois University (NIU) have developed a technique to sequester the lead used to make perovskite solar cells, a highly efficient emerging photovoltaic technology. The light-absorbing layer in a perovskite solar cell contains a minute amount of lead. The presence of this toxic material in the … [Read more...] about Researchers Improve Safety of Lead-Based Perovskite Solar Cells