Swedish researchers have used silver alloying to improve grain growth and crystal quality in the chalcopyrite absorber, which reportedly compensates for its low bandgap energy. The scientists fabricated a champion cell based on a ZTO buffer layer.Researchers at Uppsala University in Sweden have fabricated a chalcopyrite (CuGaSe2 or CGSe) solar cell by using a small amount of silver (Ag) to alloy the device absorber. "The aim of our current EU-funded project Stable Inorganic TAndem (SITA) solar cells, is to make a wide-gap chalcopyrite top cell for tandem PV devices with silicon bottom cell," researcher ...Den vollständigen Artikel lesen ...