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Longi unveils 27.27%-efficient HJT back-contact solar cell built with improved laser processing

A group of researchers from Chinese PV manufacturer Longi and China’s Yangzhou University has developed a new manufacturing technique to mitigate laser shock waves in the production of heterojunction (HJT) back-contact (BC) solar cells in an effort to reduce potential damage. “Our work not only addresses a major contradiction in laser-based manufacturing but also offers a practical, industry-ready route toward ultra-high-efficiency photovoltaics…
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pv magazine Australia broke the news on Tuesday, June 16, 2026.
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