Recently, Huainan Yiheng Photovoltaic Technology Co., Ltd. has continuously optimized its processes and developed a 1.7 eV wide bandgap perovskite solar cell through a third-party cooperative unit. After strict certification by a third-party authoritative organization, its conversion efficiency has reached as high as 23%! This achievement not only breaks the record for the highest certified efficiency of perovskite solar cells with a bandgap of 1.68 eV or more, but also demonstrates the new leap that Yiheng Photovoltaic has made in the field of perovskite solar cell technology!
As the shining star of the next generation of ultra efficient solar cell technology,silicon/perovskite tandem solar cells can break through the Shockley-Queisser limit in theoretical efficiency, reaching over 43%. Tandem solar cells increase the spectral absorption range and break through the efficiency limit of single junction cells by combining sub cells with different bandgaps. In a Tandem solar cell, the top wide bandgap cell absorbs photons, generates a higher voltage, and reduces the heat loss caused by high-energy electron relaxation. Its efficiency contribution accounts for more than 60% of the efficiency of the tandem solar cell. Therefore, developing high-quality wide bandgap perovskite solar cells is the key to preparing efficient crystalline silicon/perovskite tandem solar cell.
检验检测结果
Yiheng Photovoltaic Research Team has long adhered to the spirit of craftsmanship, daring to explore the unknown, continuously optimizing solar cell structures and processes, and accumulating rich practical experience in the field of crystalline silicon/perovskite tandem solar cells. At present, the efficiency of the 1cm ² crystalline silicon/perovskite tandem solar cell independently developed by the company has proudly exceeded 32%. At the same time, the research and development work for commercial sized tandem solar cells is also progressing in an orderly manner.
Looking ahead to the future, Yiheng Photovoltaic will unwaveringly promote the industrialization process of crystalline silicon/perovskite tandem solar cells, lead the innovation and breakthrough of large-area crystalline silicon/perovskite tandem module technology, and lay a solid road for the photovoltaic industry to open up a new era of high efficiency and low cost!
