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Tue, 21 Oct 2025 09:26:32 +0100

The rapid growth and steady expansion of PV industry in China encourage the development of solar cells that offer extra high efficiency, such as N-type bifacial, HJT and half-cut cells. Meanwhile, cost reduction and efficiency improvement have become the primary goals of the entire industry. However, an increase of mere 0.01% in solar cell efficiency requires tremendous efforts. According to the forecast of CPIA, the market share of TOPcon+HJT cells will rise to 35% in 2025, and theoretically, N-type cells featuring low oxygen content and high conversion efficiency are likely to achieve higher efficiency than P-type cells. The new stage of solar cell efficiency improvement requires superior N-type mono-Si cells that promise lower oxygen content, less resistivity and longer minority carrier lifetime. A better engineered and proven crystal growth furnace is prerequisite to producing such quality mono-Si cells.