Jolywood claims an n-type TOPCon solar cell with an efficiency of 26.7%



The Chinese Academy of Metrology and Science has certified Jolywood’s 26.7% efficiency rating for n-type tunnel oxide passivated (TOPCon) solar cells, which the company says is a world record. In November 2022, it reported a 26.1% efficiency rating for the equivalent cell.

The Chinese Academy of Metrology and Science has certified the result, which Jolywood says currently represents the world record for an n-type TOPCon cell. It improves on the company’s previous record of 26.1%, which was achieved in November 2022.

The Chinese solar module manufacturer said it achieved the new results thanks to its independently developed Plasma Oxidation & Plasma Assisted Insitu-doping Deposition (POPAID) technology. POPAID is said to solve problems with similar doped amorphous silicon technology.

“Through continuous technological innovation, Jolywood has successfully developed several cutting-edge technologies, such as impurity removal in the silicon wafer body area, local polysilicon layer, polysilicon film hydrogen content control, new metal damage repair, and ultra-fine gate line printing,” the company said. “By adopting mass production equipment and materials on the production line, Jolywood has achieved a conversion efficiency of 26.7%, which shows a clear technical direction to improve the mass production efficiency of the TOPCon cell in the future.”

Jolywood recently commissioned a 1.5GW TOPCon solar plant in Taizhou, Zhejiang Province, China.

“With this new production facility, our TOPCon solar cell production capacity has now reached 3.6 GW,” a company spokesperson said. pv magazine.

In October, the company introduced the double-sided 700W TOPCon solar module at Intersolar in Munich, Germany. In January, it announced the 615 W TOPCon product.


David is a passionate writer and researcher who specializes in solar energy. He has a strong background in engineering and environmental science, which gives him a deep understanding of the science behind solar power and its benefits. David writes about the latest developments in solar technology and provides practical advice for homeowners and businesses who are interested in switching to solar.

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