Scientists have developed a new lead-free solar material that can better survive exposure to air, moisture and heat. The advance could help make next-generation solar cells safer, more efficient and practical for everyday use. Perovskite solar cells have attracted worldwide interest because they can turn sunlight into electricity efficiently and may be easier and cheaper […] The post A Molecular “Raincoat” Could Make Lead-Free Solar Cells Last Longer appeared first on Knowridge Science Report .