The Efficiency Breakthrough of Crystalline Silicon Solar Cells
Breakthrough of LONGi Green Energy: LONGi Green Energy Technology Co., Ltd., as the first affiliated unit, published a research paper online in the journal "Nature", reporting the research achievement that the photoelectric conversion efficiency of crystalline silicon batteries has broken through 27% through the all-laser patterning process. The team has developed a new type of dense heterojunction passivation contact, breaking through the long-standing bottleneck of heterojunction preparation in the industry within the temperature range of 180 - 210°C. The process temperature has reached 240°C. Meanwhile, the all-laser patterning process and the low-indium and silver-free metallization scheme have been developed, laying the foundation for the production of low-cost and high-efficiency BC batteries and pointing out the direction for the development of crystalline silicon solar cell technology.
