JinkoSolar, a leading solar module manufacturer based in Shanghai, has announced a significant technological breakthrough with its N-type TOPCon-based perovskite tandem solar cell, achieving a record conversion efficiency of 33.84%. This record, verified by the Shanghai Institute of Microsystem and Information Technology under the Chinese Academy of Sciences, marks the company’s 27th world record in photovoltaic (PV) product efficiency.

The latest development from JinkoSolar involves the creation of a perovskite tandem solar cell utilizing N-type high-efficiency monocrystalline TOPCon technology as a foundational layer. This advancement is attributed to innovations in full-area passivated contact and defect passivation techniques, significantly enhancing the cell’s efficiency. The result exceeds the conversion efficiency limits of single-junction crystalline silicon cells, positioning TOPCon as a viable mainstream technology for future perovskite/silicon tandem applications.

JinkoSolar’s achievement underscores the potential for new developments in the photovoltaic sector, offering a promising outlook for sustainable energy solutions. According to Jin Hao, JinkoSolar’s Chief Technology Officer, this milestone exemplifies the company’s commitment to research and development and its dedication to advancing solar energy technologies. This progress is vital as the industry strives for higher efficiencies and more sustainable energy sources.

Perovskite materials are considered revolutionary in solar technology due to their high efficiency and low production costs. Despite these advantages, their long-term stability remains a challenge, especially in outdoor environments exposed to harsh conditions. Meanwhile, the industry continues to pursue advancements, as seen with Chinese manufacturer LONGi’s record-breaking 34.6% efficiency achieved in September 2024. This ongoing competition highlights the rapid pace of innovation and the quest for ultra-efficient solar cells.

As JinkoSolar and other industry leaders push the boundaries of solar cell efficiency, the potential for future advancements grows. The theoretical maximum efficiency for silicon-perovskite tandem solar cells is estimated at 43%, offering a tantalizing glimpse into the future of solar energy technology. Such developments could significantly impact renewable energy adoption and sustainability.

Article Source: China: JinkoSolar’s perovskite tandem solar cell hits record efficiency
Image Credit: Photo by Matthew Henry on Unsplash