Chinese Team Achieves 24.0% World Record Efficiency in Large-Area 810 cm² Perovskite Solar Module

The Cooldown China

Overview

A research team from Nanjing University and Renshine Solar in China has set a new world record for large-area perovskite solar modules, achieving a certified efficiency of 24.0% on an 810 cm² module. Verified by TÜV SÜD, this breakthrough was enabled by combining high-saturated-vapor-pressure (SVP) processing with chemically stable lead carboxylate passivators (LCPs), which improve charge carrier transport while enhancing durability. This achievement significantly advances the commercial viability of perovskite technology for large-scale applications.

In Depth

Key Findings

A collaborative research effort between Nanjing University and perovskite specialist Renshine Solar in China has established a new world record for large-area perovskite solar modules. The team achieved a certified power conversion efficiency of 24.0% on an 810 square centimeter module, a significant milestone verified by the international certification body TÜV SÜD.

Technical Details

• Record Efficiency: The 24.0% efficiency on an 810 cm² module surpasses previous records for large-area perovskite devices, addressing a key challenge of efficiency loss when scaling from small-area research cells.
• Certification: The record was officially certified by TÜV SÜD, lending strong credibility to the achievement and its implications for commercialization.
• Core Technology: The breakthrough relies on a sophisticated passivation strategy centered around chemically stable lead carboxylate passivators (LCPs), integrated with high-saturated-vapor-pressure (SVP) processing. This combination improves the transport of charge carriers within the device.
• Enhanced Durability: A critical advantage of the LCPs is their ability to enhance stability, mitigating degradation issues commonly observed with traditional passivating agents, thereby improving the long-term performance and reliability of the module.

Background & Context

Perovskite solar cells are hailed as a leading next-generation photovoltaic technology due to their high power conversion efficiencies and low potential manufacturing costs. However, translating high laboratory-scale efficiencies to large-area modules with sufficient long-term stability has been a persistent hurdle for commercial deployment. This Chinese research directly addresses these crucial scale-up and durability challenges.

Strategic Significance & Outlook

The achievement of 24.0% efficiency on a large-area perovskite module provides a strong impetus for the industrialization of this technology. By demonstrating both high efficiency and improved durability at a commercially relevant scale, this research paves the way for perovskite solar cells to compete with, or complement, conventional silicon panels in a wide range of applications, from residential rooftops to utility-scale solar farms. This milestone suggests accelerated market entry for perovskite modules in the coming years.

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