It was reported that on May 24, at the 16th (2023) International Solar Photovoltaic and Smart Energy (Shanghai) Exhibition (SNEC), LONGi Green Energy Technology announced its “STAR Innovative Ecological Cooperation Platform” and its newly achieved efficiency of 31.8% for perovskite/crystalline silicon tandem solar cells based on commercial CZ silicon wafers.
The German Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) reportedly certified LONGi's conversion efficiency of 31.8% for perovskite/crystalline silicon tandem solar cells based on commercial CZ silicon wafers. This was said to be the highest internationally certified conversion efficiency based on the superposition of perovskite on commercial CZ silicon wafers.
It was mentioned that previously, the international authoritative certification efficiency of the tandem cells developed by the LONGi R&D team exceeded 25.7% and 29.55% in 2021 and 2022, respectively, and was included in the “Table of China’s Highest Efficiency of Solar Cells” issued by the Photovoltaic Professional Committee of the China Renewable Energy Society that year.
