The device was built by an international research team. The cell features a buffer layer based on zinc sulfide oxide and a low copper absorber. The cell showed an open-circuit voltage of 920 mV. And though a different material from the widely commercialized CIG selenide PV thin films, the researchers claim similar processes could be used in its large-scale manufacturing.Pure sulfide chalcopyrite, Cu(In,Ga)S2, is a promising semiconductor material with a bandgap between 1.5 and 2.4 eV, which has already been used to build single-junction and tandem solar cells. Thus far, however, this material ...Den vollständigen Artikel lesen ...