KIER Achieves World-Record 26.7% Efficiency in Perovskite/CIGS Tandem Solar Cells
The Photovoltaic Research Department of the Korea Institute of Energy Research (KIER) achieved a certified world-record efficiency of 26.7% for perovskite/CIGS tandem solar cells, opening a new chapter in next-generation thin-film photovoltaics. This achievement was officially certified by the Fraunhofer Institute for Solar Energy Systems (ISE) in Germany and listed in the Best Research-Cell Efficiencies Chart published by the US National Laboratory of the Rockies (NLR, formerly NREL).
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