XIAN, China :  LONGi has announced a new efficiency breakthrough for its Gallium-doped p-type HJT silicon solar cell. The new world record conversion efficiency of 25.47% for large-size p-type cells was achieved using a mass production process on full-size (M6, 274.3cm²) monocrystalline silicon wafers, the result, validated in testing carried out at the Institute for […]