Two-dimensional perovskite templates for durable, efficient formamidinium perovskite solar cells

• 成果类型: Article
• 署名作者: Sidhik, Siraj; Metcalf, Isaac; Li, Wenbin; Kodalle, Tim; Dolan, Connor J.; Khalili, Mohammad; Hou, Jin; Mandani, Faiz; Torma, Andrew; Zhang, Hao; Garai, Rabindranath; Persaud, Jessica; Marciel, Amanda; Puente, Itzel Alejandra Muro; Reddy, G. N. Manjunatha; Balvanz, Adam; Alam, Muhammad A.; Katan, Claudine; Tsai, Esther; Ginger, David; Fenning, David P.; Kanatzidis, Mercouri G.; Sutter-Fella, Carolin M.; Even, Jacky; Mohite, Aditya D.
• 署名单位: Rice University; Rice University; Rice University; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; University of California System; University of California San Diego; Centre National de la Recherche Scientifique (CNRS); CNRS - Institute of Chemistry (INC); Universite d'Artois; Universite de Lille; Centrale Lille; Northwestern University; Purdue University System; Purdue University; Ecole Nationale Superieure de Chimie de Rennes (ENSCR); Centre National de la Recherche Scientifique (CNRS); CNRS - Institute of Chemistry (INC); Universite de Rennes; United States Department of Energy (DOE); Brookhaven National Laboratory; University of Washington; University of Washington Seattle; Northwestern University; Northwestern University; Centre National de la Recherche Scientifique (CNRS); Institut National des Sciences Appliquees de Rennes; Universite de Rennes
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-9192
• DOI: 10.1126/science.abq6993
• 发表日期: 2024-06-14
• 页码: 1227-1235
• 关键词: quantum confinement; performance; temperature; physics

摘要

We present a design strategy for fabricating ultrastable phase-pure films of formamidinium lead iodide (FAPbI(3)) by lattice templating using specific two-dimensional (2D) perovskites with FA as the cage cation. When a pure FAPbI(3) precursor solution is brought in contact with the 2D perovskite, the black phase forms preferentially at 100 degrees C, much lower than the standard FAPbI(3) annealing temperature of 150 degrees C. X-ray diffraction and optical spectroscopy suggest that the resulting FAPbI(3) film compresses slightly to acquire the (011) interplanar distances of the 2D perovskite seed. The 2D-templated bulk FAPbI(3) films exhibited an efficiency of 24.1% in a p-i-n architecture with 0.5-square centimeter active area and an exceptional durability, retaining 97% of their initial efficiency after 1000 hours under 85 degrees C and maximum power point tracking.