DAS Solar achieves record open-circuit voltage of 742mV and 26.36% efficiency with TOPCon 4.0 Plus

By DAS Solar
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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 IV curve certified by NPVM

“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.

DAS Solar’s TOPCon cell efficiency continues to break through

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.”

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