新技术助力钙钛矿太阳能电池迈向产业化

Core Insights - The efficiency of small-area metal halide perovskite solar cells has reached 27%, comparable to commercial silicon cells, but long-term stability remains a challenge [1][2] - The research team from Nanjing University of Aeronautics and Astronautics developed a gas-assisted surface reconstruction technology that suppresses irreversible degradation in outdoor environments, achieving stability comparable to commercial silicon solar cells [1] - The new technology significantly reduces production costs and is compatible with existing photovoltaic production lines, marking a critical step towards industrialization [2] Group 1 - The gas-assisted surface reconstruction technology allows for in-situ reconstruction of perovskite surface structures, isolating defect-rich surface units and suppressing irreversible ion migration [1][2] - The power conversion efficiency of the 0.16 cm² cell and the 785 cm² module reached 25.3% and 19.6%, respectively [2] - The estimated T80 lifespan of the module is projected to reach 2478 cycles, equivalent to over 6.7 years of operation at 25°C, translating to an outdoor lifespan exceeding 25 years, making it the most stable perovskite module in current research [2]