Researchers in South Korea have analyzed the effects of alkali doping on the fill factor of kesterite solar cells and have built a device on a flexible metal foil optimized with a sodium fluoride doping layer.A group of scientists from South Korea's Gwangju Institute of Science and Technology and the Ewha Womans University have sought to increase the fill factor (FF) of kesterite solar cells with alkali doping. The fill factor is currently the second most significant parameter deficit in this kind of cell technology after the open circuit voltage (VOC) deficit. The copper, zinc, tin, sulfide ...Den vollständigen Artikel lesen ...