A matrix-confined molecular layer for perovskite photovoltaic modules

• 成果类型: Article
• 署名作者: Liang, Yugang; Chen, Guodong; Wang, Yao; Zou, Yu; Feng, Menglei; Wang, Yanming; Li, Bowei; Cho, Yuljae; Chang, Yide; Liu, Tianle; Zhang, Taiyang; Lou, Yongbing; Xu, Ranran; Lu, Lei; Zhang, Ni; Meng, Ke; Zhu, Chen; Ouyang, Chuying; Miao, Yanfeng; Guo, Yongsheng; Chen, Yuetian; Zhao, Yixin
• 署名单位: Shanghai Jiao Tong University; Shanghai Jiao Tong University; Shanghai Institute of Technology; Southeast University - China; Jiangxi Normal University
• 刊物名称: NATURE
• ISSN/ISSBN: 0028-0836; 1476-4687
• DOI: 10.1038/s41586-025-09785-3
• 发表日期: 2025-12-04
• 关键词: interfaces

摘要

Metal halide perovskites with remarkable optoelectronic properties have become a competitive candidate for supporting the efficiency progression of photovoltaics. As the latest reported power conversion efficiency of research cells is comparable to that of commercialized silicon cells1, 2-3, the industrialization of perovskite solar cells is on the horizon4,5. However, most high-efficiency inverted perovskite solar cells based on self-assembled molecules (SAMs) face challenges owing to the aggregation and hydrophobicity of the SAMs. Here we report a 'SAM-in-matrix' strategy to distribute partial SAMs into a stable matrix of tris(pentafluorophenyl)borane, which breaks the original molecular-stacking-induced aggregation. Two-dimensional lattice Monte Carlo simulations and experimental results reveal that this strategy forms efficient charge transport channels. SAM-in-matrix hole-transport-layer-based devices show universally higher efficiencies for various SAMs, with compact surface coverage, good conductivity and substantially fewer buried nanovoids. Moreover, this strategy shows prominent application potential for scalable production. A SAM-in-matrix hole transport layer on fluorine-doped tin oxide/NiOx substrate facilitates the formation of large-area perovskite films with good crystalline quality and enhanced conductivity of NiOx. A 1 m x 2 m large-area perovskite solar module is thus achieved with a certified efficiency of 20.05%.