The 166 mono-Si HJT cell developed by Huasun has achieved a record-breaking conversion efficiency of 25.23% from the recent testing of the authoritative testing institution ISFH, which showcases Huasun’s sturdy improvement in HJT cell technology, and indicates the company’s unswerving determination and strength in achieving the particular efficiency.
It is understood that Huasun had achieved a conversion efficiency of 25.06% for the mass production line of 166 HJT cell on June 8th, before achieving a new world record of 25.23% by adopting the microcrystalline production process when working with leading HJT equipment supplier Maxwell. According to Doctor Wang Wenjing, the CTO of Huasun, the record is a new height achieved on microcrystalline craftsmanship that is possible for mass production, as well as a reliable guarantee in attaining a mass production efficiency of 25.5%.
Senior insiders of the industry commented that the regular-sized 166 Champion cell announced by Huasun still uses the sputtering TCO film for the PVD mass production process, which offers feasibility in extensive mass production, while the difficulty and gold content are self-evident. The company has been aggressively exploring methods in elevating efficiency and reducing cost, and achieved constant improvement in mere months, as well as multiple critical breakthroughs in N type high-efficiency mono-Si HJT cell technology.
Doctor Wang commented that HJT solar cells can be further improved in efficiency by replacing the current doped amorphous silicon with doped microcrystalline silicon or doped microcrystalline silicon oxide (carbide), where both the doping concentration and light transmittance would elevate, and the electrical resistance of the doped layer would reduce, before the current density of the HJT cell is magnified at the end. Doctor Wang said that the company anticipates a constantly improving record of efficiency, and these high-efficiency technologies will be applied on the production lines to achieve extensive production under low cost and applications for GW-grade 25%+ HJT cells.
Source：Energy Trend
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