文献类型：期刊文献

英文题名：Synergistic All-Round Passivation via Dual-Mode Zwitterionic Treatment for Efficient and Stable Carbon-Based Perovskite Solar Cells

作者：Huang, Shucheng[1,3]; Feng, Shuaiqiang[2]; Ma, Dun[1]; Shi, Yanyan[1]; Deng, Zhihao[1]; Wu, Wenjun[1]

机构：[1] Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] Future Battery Research Center, Global Institute of Future Technology, Shanghai Jiao Tong University, Shanghai, 200240, China; [3] Guilin University of Technology, China

年份：2026

外文期刊名：SSRN

收录：EI(收录号：20260040340)

语种：英文

外文关键词：Carbon - Carbon electrodes - Cationic surfactants - Cost effectiveness - Dyes - Electrodes - Infiltration - Oxygen - Oxygen vacancies - Passivation - Perovskite solar cells - Photovoltaic effects - Photovoltaics - Solar power generation

摘要：For printable mesoscopic carbon-based perovskite solar cells (p-MPSCs), the unique perovskite diffusion-assembly process and ultra-thick mesoporous scaffold (~30 μm) make wettability and diffusion pathways the primary bottlenecks limiting single-mode defect passivation. Herein, we innovatively introduce a dual-mode defect passivation strategy employing the bifunctional cationic surfactant cetyltrimethylammonium bromide (CTAB), which concurrently addresses perovskite charged defects, TiO2 oxygen vacancies, and precursor infiltration issues. Through synchronous pre- and post-treatment leveraging CTAB's zwitterionic properties, synergistic improvements in infiltration (pre-mode) and secondary recrystallization (post-mode) enable simultaneous passivation of oxygen vacancies, band bending, and cationic/anionic defects. This approach boosts the PCE from 15.50% to 18.08% under AM 1.5G, while remarkably surging to an impressive 31.06% under indoor illumination. Notably, unencapsulated CTAB-treated devices retain 94.41% of initial efficiency after 6000 h in ambient air. This universal, sustainable dual-mode framework significantly advances efficient, stable, and cost-effective carbon-based perovskite photovoltaics for green energy applications. ? 2026, The Authors. All rights reserved.