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LONGi sets new efficiency record for p-type HJT cell

Solar giant LONGi has announced it has broken another efficiency record for gallium-doped p-type heterojunction (HJT) solar cell at 26.12%. The result has been confirmed by the Institute for Solar Energy Research Hamelin (ISFH).

LONGi sets new conversion efficiency record for gallium-doped p-type HJT cell
LONGi sets new efficiency record for p-type HJT cell

The new record has been created just six months after LONGi achieved an efficiency record of 25.47% in March this year.

LONGi’s research team has upgraded the wafering process for better resistivity and longer lifespan of the solar cells. The cell’s short-circuit current, open-circuit voltage and fill factor have been improved by 1.06%, 0.3% and 1.1% respectively.

The development process of the cell is similar to that of n-type cells, demonstrating the technology’s versatility and stability, the company said.

In 2021, LONGi has broken conversion efficiency records for seven times, and pushed the efficiency of n-type TOPCon to 25.21%, p-type TOPCon to 25.19% and n-type HJT to 26.30%.

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