South Korean scientists have built a kesterite solar cell based on a zinc tin oxide (ZTO) buffer layer. It offers almost the same efficiency as kesterite cells based on toxic cadmium sulfide buffer layers, as the energy of the electrons between the kesterite absorber layer and ZTO buffer layer are aligned.A research team from South Korea's Incheon National University (INU) has developed a kesterite solar cell with an 11.22% efficiency rating. The team claims the cell is environmental friendly, as its buffer layer is made of zinc tin oxide (ZTO), rather than toxic cadmium sulfide (CdS), which ...Den vollständigen Artikel lesen ...