The figure, achieved on a 0.5sq cm cell during joint research with national R&D body Nedo, was independently verified by Germany’s Fraunhofer Institute.
“Solar Frontier’s new 20.9% efficiency record resulted from a CIS cell cut from a 30cm x 30cm substrate produced using a sputtering-selenisation formation method - the same method we use in our factories,” says Solar Frontier chief technology officer Satoru Kuriyagawa.
“The
