Key Findings
A research collaboration between Nanjing University and Renshine has achieved a groundbreaking certified efficiency of 22% for meter-scale perovskite modules, with their results published in the prestigious journal ‘Nature’. This accomplishment addresses critical concerns regarding scalability and long-term stability, which have been major barriers to the commercialization of perovskite solar cells. Notably, field demonstrations conducted from March to May 2026 showed the developed perovskite system outperforming conventional silicon solar cell systems by 3.42% to 5.81% in monthly power generation, unequivocally proving its practical superiority and potential.
Technical Details
This breakthrough is primarily attributed to two innovative technical approaches. First, the development of a novel solvent formulation for module fabrication significantly improved the uniformity and quality of the perovskite crystalline layer. Second, the introduction of vacuum-assisted crystallization technology allowed for precise control over crystal growth, dramatically enhancing module stability under harsh conditions such as humidity, heat, and continuous illumination. Consequently, these meter-scale modules successfully passed rigorous international reliability standards, including damp-heat and thermal cycling tests specified by IEC61215 and IEC61730. This robust performance indicates that the perovskite modules possess the necessary durability for long-term outdoor deployment, a crucial step for market acceptance.
Background & Context
Perovskite solar cells have been hailed as the ‘next-generation solar cells’ due to their high theoretical efficiency and potential for low-cost manufacturing. However, a persistent challenge has been scaling up high-efficiency laboratory-scale cells to practical, large-area modules while maintaining long-term stability. The inherent susceptibility of perovskite materials to moisture and heat has been a significant impediment to their widespread outdoor adoption. The achievement by Nanjing University and Renshine represents a dual breakthrough in both scalability and stability, offering a solution that the industry has eagerly awaited. The demonstrated power generation advantage over silicon cells, particularly under cloudy and low-light conditions, suggests broad applicability across diverse climatic zones, further expanding market opportunities.
Strategic Significance & Outlook
The achievement of 22% certified efficiency on meter-scale perovskite modules, coupled with proven power generation superiority over silicon, marks a definitive stride towards the commercialization of perovskite solar cells. If this technology can transition to even larger-scale manufacturing, it has the potential to further drive down the cost of solar energy and accelerate the global energy transition. Combined with low-cost manufacturing techniques like roll-to-roll processing, new market segments such as flexible solar cells and Building-Integrated Photovoltaics (BIPV) are also poised for rapid adoption. This research re-establishes China’s leadership in cutting-edge perovskite solar cell technology, promising a significant impact on the global renewable energy market.
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