Nanjing University, Renshine Solar Set 24.0% World Record for Large-Area Perovskite Solar Module with LCPs Passivation

September 13, 2026

The Cool Down China

Overview

A joint research team from Nanjing University and Renshine Solar has achieved a new world record for large-area perovskite solar modules, certifying 24.0% efficiency (24.2% peak) for an 810 cm² aperture module. This breakthrough employs a passivation strategy utilizing chemically stable lead carboxylate passivators (LCPs), which significantly improves charge-carrier transport and device stability. This advancement paves the way for lower solar electricity costs and robust, large-scale commercial deployment of perovskite technology.

In Depth

Key Findings: Nanjing University and Renshine Solar Achieve 24.0% World Record Efficiency for Large-Area Perovskite Solar Modules

A collaborative research team spearheaded by Nanjing University and perovskite specialist Renshine Solar has established a new world record for large-area perovskite solar modules, achieving a certified efficiency of 24.0% (with a top conversion efficiency of 24.2%) for an 810 square centimeter (125.6 square inch) aperture module. This groundbreaking accomplishment is expected to significantly contribute to reducing the cost of solar electricity and represents a crucial milestone in the commercialization of next-generation solar cells. Achieving high efficiency at such a large area is particularly vital for translating laboratory-scale successes into industrial production.

Technical Details: Enhanced Efficiency and Stability via LCPs Passivation Strategy

The key to this world record lies in a unique passivation strategy employing chemically stable lead carboxylate passivators (LCPs). Perovskite materials often suffer from defects in their crystal structure that lead to charge carrier recombination, thereby reducing efficiency and stability. LCPs effectively passivate these defects, suppressing charge carrier losses and significantly improving photoelectric conversion efficiency. Specifically, LCPs bind to defect sites present on the perovskite layer’s surface and grain boundaries, reducing non-radiative recombination and allowing more electrons and holes to reach the external circuit. This not only enhances carrier lifetime but also boosts the overall device performance.

Beyond efficiency, this passivation strategy has also been shown to dramatically improve the long-term stability of the devices. For commercial solar cells, high efficiency must be coupled with long-term reliability, typically over 20 years, and the LCPs approach substantially increases the likelihood of meeting these requirements. The achievement on large-area modules also suggests compatibility with scalable manufacturing processes such as slot-die or blade coating, further bolstering expectations for future mass production.

Background and Industry Context

Conventional silicon solar cells are nearing their theoretical efficiency limits, making next-generation technologies essential for further cost reductions and performance improvements. Perovskite solar cells are widely recognized as a leading candidate due to their high theoretical efficiency and potential for low-cost manufacturing. While high efficiencies have been demonstrated in small-area perovskite devices, the primary challenge has been to achieve both high efficiency and long-term stability in practical large-area modules. The research by Nanjing University and Renshine Solar offers a concrete solution to this challenge, demonstrating that perovskite solar cells are approaching a stage where they can compete with existing solar technologies across a broad range of applications, from residential to industrial.

Strategic Significance and Outlook

This world record in large-area perovskite modules is a significant step towards further reducing the Levelized Cost of Energy (LCOE) for solar power, thereby accelerating the adoption of renewable energy. If this technology can be scaled up to gigawatt-level production, perovskite solar cells could become a major player in the global energy market. For researchers, it will stimulate exploration into new chemical approaches for defect passivation; for engineers, it will lead to the development of more robust and efficient module designs. Investors are keenly watching the significant commercialization potential of this technology and its transformative impact on the solar photovoltaic industry.

Source: https://now.solar/2026/09/04/chinese-researchers-set-24-efficiency-world-record-for-large-perovskite-solar-module-the-cool-down/

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