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

Siraj Sidhik; Isaac Metcalf; Wenbin Li; Tim Kodalle; Connor J Dolan; Mohammad Khalili; Jin Hou; Faiz Mandani; Andrew Torma; Hao Zhang; Rabindranath Garai; Jessica Persaud; Amanda Marciel; Itzel Alejandra Muro Puente; G N Manjunatha Reddy; Adam Balvanz; Muhammad A Alam; Claudine Katan; Esther Tsai; David Ginger; David P Fenning; Mercouri G Kanatzidis; Carolin M Sutter-Fella; Jacky Even; Aditya D Mohite

doi:10.1126/science.abq6993

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

Science. 2024 Jun 14;384(6701):1227-1235. doi: 10.1126/science.abq6993. Epub 2024 Jun 13.

Authors

Siraj Sidhik^{1

2}, Isaac Metcalf¹, Wenbin Li^{2

3}, Tim Kodalle⁴, Connor J Dolan⁵, Mohammad Khalili², Jin Hou¹, Faiz Mandani², Andrew Torma^{2

3}, Hao Zhang^{2

3}, Rabindranath Garai², Jessica Persaud², Amanda Marciel², Itzel Alejandra Muro Puente⁶, G N Manjunatha Reddy⁶, Adam Balvanz⁷, Muhammad A Alam⁸, Claudine Katan⁹, Esther Tsai¹⁰, David Ginger¹¹, David P Fenning⁵, Mercouri G Kanatzidis¹², Carolin M Sutter-Fella⁴, Jacky Even¹³, Aditya D Mohite^{1

2}

Affiliations

¹ Department of Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA.
² Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX 77005, USA.
³ Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, TX 77005, USA.
⁴ Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
⁵ Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California, San Diego, La Jolla, CA 92093, USA.
⁶ Centrale Lille Institut, Univ. Artois, University of Lille, CNRS, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France.
⁷ Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.
⁸ School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA.
⁹ École Nationale Supérieure de Chimie de Rennes (ENSCR), Université Rennes, CNRS, Institut des Sciences Chimiques de Rennes (ISCR)-UMR 6226, F-35000 Rennes, France.
¹⁰ Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA.
¹¹ Department of Chemistry, University of Washington, Seattle, WA 98195, USA.
¹² Department of Chemistry and Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA.
¹³ Institut National des Sciences Appliquées (INSA) Rennes, Université Rennes, CNRS, Institut Fonctions Optiques pour les Technologies de l'Information (FOTON)-UMR 6082, F-35000 Rennes, France.

PMID: 38870286
DOI: 10.1126/science.abq6993

Abstract

We present a design strategy for fabricating ultrastable phase-pure films of formamidinium lead iodide (FAPbI₃) by lattice templating using specific two-dimensional (2D) perovskites with FA as the cage cation. When a pure FAPbI₃ precursor solution is brought in contact with the 2D perovskite, the black phase forms preferentially at 100°C, much lower than the standard FAPbI₃ annealing temperature of 150°C. X-ray diffraction and optical spectroscopy suggest that the resulting FAPbI₃ film compresses slightly to acquire the (011) interplanar distances of the 2D perovskite seed. The 2D-templated bulk FAPbI₃ 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°C and maximum power point tracking.