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【Science】Vapor-assisted surface reconstruction enables outdoor-stable perovskite solar modules

时间:2025-06-03来源:国际前沿科学研究院点击:213

Xiangnan Sun # 1Wenda Shi # 2Tianjun Liu 3Jinzhan Cheng 1Xin Wang 4

Peng Xu 1Wei Zhang 1Xiaoming Zhao 1Wanlin Guo 1

ScienceIF:44.8),Epub 2025 May 29

Abstract

Natural illumination variations in light-dark cycles induce irreversible ion migration in perovskite solar cells, posing substantial challenges to their long-term outdoor operational stability. We addressed this issue by isolating defective octahedra at the perovskite surface using a vapor-deposited polydentate ligand. Surface octahedra isolation suppresses ion migration into the charge transport layer and reduces surface ionic defects, modulating the kinetics of ion migration during light-dark cycles. Our 785-square-centimeter industrial-scale perovskite solar modules achieved a power conversion efficiency (PCE) of 19.6%. Our modules demonstrated enhanced diurnal stability, retaining more than 97% of their initial PCE even after 101 light-dark cycles at 50°C. Our perovskite modules maintained stable power output during 45 days of outdoor operation under severe summer conditions, exhibiting stability comparable with that of the reference silicon cell.



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