JinkoSolar Holding Co, one of the largest solar module manufacturers in the world, has announced the achievement of a significant breakthrough in the development of its N-type TOPCon-based perovskite tandem solar cell. Independently tested by the Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, the cell achieved a conversion efficiency of 33.84%, overtaking JinkoSolar’s previous record of 33.24%. This marks the 27th time JinkoSolar has set a world record for efficiency and power output for PV products.
The record-breaking tandem solar cell utilises JinkoSolar’s N-type high-efficiency monocrystalline TOPCon solar cell as the lower cell, enhanced, says its maker, by significant advancements across multiple key technologies. Innovations such as full-area passivated contact technology, perovskite interfacial defect passivation technology, and bulk defect passivation technology have contributed to the enhanced efficiency of this perovskite cell. The results once again break the conversion efficiency limit of single-junction crystalline silicon cells. This achievement, says JinkoSolar, also highlights the compatibility of TOPCon as a mainstream solar cell technology with the next-generation perovskite/silicon tandem cell technology, paving the way for new possibilities in the future development of the photovoltaic industry.
