DAS Solar has announced that it has broken the world record for a TOPCon 4.0 Plus high-efficiency cell by achieving an efficiency of 26.36% and an open-circuit voltage of 742mV.
The data was certified by China’s National PV Industry Measurement and Testing Center (NPVM), confirming that the company’s previous efficiency record for TOPCon 4.0 large-area (334cm2) cells, which it set at 26.33% in September 2023, had been surpassed, together with its previous open-circuit voltage record of 735mV set in December 2023.
“The DAS Solar R&D team has consistently improved the open-circuit voltage of TOPCon cells, progressing from 701mV with TOPCon1.0 to 742mV with TOPCon4.0 Plus. A perfect passivation structure in the cell underpins its ability to achieve a high open-circuit voltage, with TOPCon technology expected to progress towards its theoretical limit of 28.7% in the near future,” commented CTO Dr. Song Dengyuan.
Chairman and president Liu Yong added: “Innovation has never been a shortcut, it requires a down-to-earth spirit along with a dedication to research and development.”