Red Solar claims 26.01% efficiency for TOPCon bifacial solar cell

Chinese manufacturer Red Solar says its new 182 mm bifacial solar cell, which is based on tunnel oxide passivated contact (TOPCon) tech, has an efficiency of 26.01%.

Chinese PV manufacturer Red Solar claims to have achieved a power conversion efficiency of 26.01% for an n-type bifacial solar cell based on TOPCon technology.

“This technological breakthrough is attributed to the successful practices of the company’s R&D team in the development and validation of low reflectivity texture technology, front boron plus rear-oxidized high sheet resistance technology, LPCVD and Phosphorus diffusion matching process, ultra-narrow line width printing and metallization technology, rear-side special multi-busbar technology, and laser-induced firing technology,” the company said in a statement.

The 182 mm cell has a thickness of 130 μm and a front efficiency of 25%. The bifaciality factor is 80%.

The device’s temperature coefficient is -0.30% per degree Celsius and the relative conversion efficiency is more than 97% under low light conditions of 200 W/m2.

“Calibration cells are traceable to Germany’s Fraunhofer ISE,” said the manufacturer.

Red Solar said that one of its undisclosed clients achieved a 25.6% for a processed solar cell with this architecture.

“We have already mastered the core technology to achieve a better cell efficiency and are expected to achieve a higher average conversion efficiency in the first quarter of 2024,” said the company.

This post appeared first on PV Magazine.

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