Plasma surface engineering for efficient and stable perovskite solar cells and modules

• 成果类型: Article
• 署名作者: Fan, Rundong; Ma, Yue; Xu, Shuoyang; Cheng, Liang; Zhang, Zhongyang; Li, Yan; Liu, Huijun; Bao, Zhaoboxun; Liu, Guilin; Wu, Yuetong; Zhuang, Xinmeng; Li, Kailin; Chen, Yanrun; Tze Fung Ng, Jackson; Huang, BoShiun; Zhou, Wentao; Zhang, Yu; Han, Ying; Yin, Ruiyang; Liu, Shaocheng; Xia, Tianhao; Xiao, Mengqi; Zhan, Xiaowei; Zhao, Xiaoxu; Chen, Qi; Zhou, Huanping
• 署名单位: Peking University; Peking University; Jiangnan University; Beijing Institute of Technology; Peking University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8075; 1095-9203
• DOI: 10.1126/science.aeg1730
• 发表日期: 2026-07-30
• 页码: 490-497
• 关键词: recombination; CH3NH3PBI3; transport; density; IMPACT

摘要

The instability of perovskite solar cells (PSCs) stems largely from the formation and evolution of interfacial defects associated with the soft, multicomponent perovskite lattice. We report a scalable, plasma-based passivation strategy that forms conformal, uniform, and strong-bonded heterostructure through in situ chemical reactions on large-area perovskite films. This approach also mitigates defect accumulation within the laser-scribed interconnection regions, where localized damage often dominates module-level performance losses. We achieved a power conversion efficiency (PCE) of 27.2% in small-area devices (active area 8.313 square millimeters) and 24.0% (certified efficiency of 23.5%) in 100-square-centimeter (cm2) modules (aperture area 65.05 cm2). The small-area device retained 98.1% of its initial PCE after 2000 hours of maximum power point tracking at 85 degrees C under 1-sun illumination, and the 100-cm2 module retained 99.3% of its initial PCE after 1600 hours at 65 degrees C under 1-sun illumination.