journal article·2022-10-14Open access

Pyridine Controlled Tin Perovskite Crystallization

Giuseppe Nasti, Mahmoud Hussein Aldamasy, Marion Alwine Flatken, Pellegrino Musto, Piotr Matczak, André Dallmann, Armin Hoell, Artem Musiienko, Hannes Hempel, Ece Aktas, Diego Di Girolamo, Jorge Pascual, Guixiang Li, Meng Li, Lucia Vittoria Mercaldo, Paola Delli Veneri, Antonio Abate

ACS Energy Letters· Volume 7· Issue 10

Abstract

Controlling the crystallization of perovskite in a thin film is essential in making solar cells. Processing tin-based perovskite films from solution is challenging because of the uncontrollable faster crystallization of tin than the most used lead perovskite. The best performing devices are prepared by depositing perovskite from dimethyl sulfoxide because it slows down the assembly of the tin–iodine network that forms perovskite. However, while dimethyl sulfoxide seems the best solution to control the crystallization, it oxidizes tin during processing. This work demonstrates that 4-(tert-butyl) pyridine can replace dimethyl sulfoxide to control the crystallization without oxidizing tin. We show that tin perovskite films deposited from pyridine have a 1 order of magnitude lower defect density, which promotes charge mobility and photovoltaic performance.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Chalcogenide Semiconductor Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical Materials and Production Engineering, University of Naples Federico II, Piazzale Vincenzo Tecchio 80, 80125 Naples, Italy

Department of Novel Materials and Interfaces for Photovoltaic Solar Cells, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany

Egyptian Petroleum Research Institute, 4441312 Cairo, Egypt

National Research Council of Italy Institute for Polymers Composites and Biomaterials, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy

Faculty of Chemistry, University of Łódź́́́, 90-149 Lodz, Poland

Humboldt Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489 Berlin, Germany

Key Lab for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004 China

Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) - Portici Research Center, Piazzale E. Fermi, 80055 Portici (NA), Italy

Funding

European Commission · Ministry of Ecological Transition · German Science Foundation (DFG)

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