9 May, 2024 Heterojunction (HJT) solar cells boast exceptional photovoltaic conversion efficiency: At Huasun, the average efficiency of double-sided microcrystalline HJT 210mm solar cells has reached 26.15% in mass production, with peak efficiency hitting 26.50%, and these figures are constantly being updated. But how exactly are HJT solar cells crafted? You might assume it’s a highly intricate process, yet it’s surprisingly straightforward!