After breaking the world record for wide bandgap perovskite cells in December 2024, Yiheng Photovoltaic has once again achieved a new breakthrough in the efficiency of silicon/perovskite tandem solar cells! In January 2025, after strict testing by the authoritative third-party organization of the CPVT, the conversion efficiency of the 1cm2 silicon/perovskite tandem solar cell developed by Yiheng Photovoltaic reached 33.55%. This achievement means Yiheng Photovoltaic's successful entry into the international top level in silicon/perovskite tandem solar cell technology.
According to the Shockley-Queisser theory, the efficiency limit of crystalline silicon cells is 29.4%. The efficiency of the silicon/perovskite tandem solar cell developed by Yiheng Photovoltaic has far exceeded this theoretical limit. As the mainstream development path for the next generation of efficient solar cells, the theoretical efficiency of silicon/perovskite tandem solar cells can reach 43%, showing great potential and hope in solving future energy problems.
In the process of promoting the commercialization of silicon/perovskite tandem solar cells, in addition to seeking breakthroughs in high efficiency, there are also challenges of large-area film formation and long-term stability. The R&D team of Yiheng Photovoltaic has been continuously cultivating in this technology field, relentlessly pursuing innovation, and has accumulated profound technical knowledge and rich experience reserves in response to the above challenges. The significant improvement in the efficiency of silicon/perovskite tandem solar cells this time is not only a powerful demonstration of Yiheng Photovoltaic's research and innovation capabilities and strong strength, but also a clear expression of its firm belief and determination in the face of the commercialization challenges of the new generation of high-efficiency cells.
Looking ahead to the future, Yiheng Photovoltaic will unwaveringly promote the industrialization process of silicon/perovskite tandem solar cells, lead the innovation and breakthrough of large-area 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!
