文献类型：期刊文献

英文题名：Polyvinyl-based hole-transporting materials processed with non-destructive and green solvents for tin-lead perovskite solar cells and all-perovskite tandems

作者：Liu, Jiayi[1];Zhao, Yun[1];Zhan, Liqing[1];Zhang, Shuo[1,4];Tang, Haorui[1];Ma, Rujun[1];Long, Xinwen[1];Zhou, Lihui[1];Zhu, Qifeng[3];Yang, Shuang[3];Zhu, Weihong[1,2,4];Wu, Yongzhen[1,2,4]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Joint Int Res Lab Precis Chem, Key Lab Adv Mat,Inst Fine Chem,Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Guangxi Lab Low Carbon Technol & Green Chem Adv Ma, 1 Haitun Rd, Qinzhou 535008, Guangxi, Peoples R China;[3]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Ctr Photosensit Chem Engn, Shanghai 200237, Peoples R China

年份：2026

外文期刊名：CHEMICAL SCIENCE

收录：;EI(收录号：20262721038472);Scopus(收录号：2-s2.0-105043527143);WOS:【SCI-EXPANDED(收录号:WOS:001809203300001)】；

基金：The work was supported by the National Natural Science Foundation of China (22425502, T2488302, W2412114, 22179037, and 22509061), the Guangxi Science and Technology Innovation Platform Program ("Leitai" Action Plan - Guangxi Laboratory Capacity Building) (LT2504240035), the Shanghai Municipal Science and Technology Major Project (24DX1400200 and 24DZ3001003), the Shanghai Pilot Program for Basic Research (22TQ14001001), the Program of Introducing Talents of Discipline to Universities (B16017), the Shanghai Sailing Program (24YF2708200), Fundamental Research Funds for the Central Universities, the China Postdoctoral Science Foundation (BX20240117 and 2025M780061), and the Fundamental and Interdisciplinary Disciplines Breakthrough Plan of the Ministry of Education of China (JYB2025XDXM404).

语种：英文

外文关键词：Deposition - Efficiency - Hole mobility - Lead compounds - Nanostructured materials - Perovskite solar cells - Tin

摘要：The widely used poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) in tin-lead (Sn-Pb) mixed perovskite solar cells limits scalable fabrication and operational stability of all-perovskite tandem solar cells. The aqueous-based and acidic PEDOT:PSS can penetrate the interconnection layer and degrade the underlying wide bandgap subcell. Here, we report a series of polyvinyl-based hole-transporting materials (PE-MPs) that are processable in non-aqueous green solvents. The deposition of PE-MPs is non-destructive to underlying perovskite stacks, and the resulting thin layer further protects the bottom subcell during the deposition of the Sn-Pb perovskite, providing a wide processing window for tandem fabrication. Through optimization of the monomer ratio, the best-performing PE-MP2 enables both efficient hole extraction and robust interfacial adhesion, greatly improving performance and stability of Sn-Pb devices and all-perovskite tandems. The Sn-Pb perovskite solar cell achieves a power conversion efficiency of 22.72%, and the all-perovskite tandem cell reaches 29.08% (certified 28.69%). More importantly, the all-perovskite tandems retain 90% of their initial efficiency after 570 hours of maximum power point tracking, ranking among the most efficient and stable all-perovskite tandems without PEDOT:PSS.