Redirecting wet-interfacial redox pathways for efficient inverted perovskite solar cells
成果类型：
Article
署名作者：
Liang, Zheng; Liu, Boyuan; Li, Yuelong; Zhang, Yalan; Yang, Yi; Cheng, Shengbin; Ma, Linchuan; Tu, Bao; Liu, Hua-Chao; Xu, Huifen; Bao, Yuqi; Fan, Minghui; Zhu, Peide; Zhang, Xianfu; Li, Congqi; Zhang, Hui; Zhang, Xinyuan; Li, Yuheng; Chen, Guodong; Liu, Cheng; Zhu, Chen; Ouyang, Chuying; Park, Nam-Gyu; Zhang, Yong
署名单位：
Hong Kong University of Science & Technology (Guangzhou); Sungkyunkwan University (SKKU); Sungkyunkwan University (SKKU); Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; Hefei Institutes of Physical Science, CAS; Nankai University; Nankai University; Nankai University; Shanghai Jiao Tong University; Shenzhen University; Southern University of Science & Technology; Shanghai Jiao Tong University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Sungkyunkwan University (SKKU)
刊物名称：
SCIENCE
ISSN/ISSBN：
0036-8075; 1095-9203
DOI：
10.1126/science.aeg8415
发表日期：
2026-08-20
页码：
800-806
关键词：
摘要：
Carbazole-based phosphonic acid self-assembled monolayers (SAMs) are essential for high-efficiency p-i-n perovskite solar cells. However, during processing, these SAMs inevitably contact perovskite inks, where their acidity triggers a dimethyl sulfoxide (DMSO)-mediated iodide redox reaction that imprints device performance, representing a universal bottleneck for inverted devices. We resolve this SAM-triggered redox mechanism and introduce chemistry-matched hydrazide additives to mitigate the degradation. These additives abrogate DMSO activation and redirect unwanted by-products toward benign hydrazide-formamidinium adducts. Consequently, we achieved power conversion efficiencies (PCEs) of 27.7% (certified 27.4%) in small-area (0.06 cm2) cells and 20.1% in 2.0 m2 modules, along with T95 lifetimes of similar to 2000 hours of maximum power point tracking (MPPT) at 85 degrees C and similar to 1500 hours MPPT at 85 degrees C and 85% relative humidity.
来源URL：