From Chalcogen Bonding to S–π Interactions in Hybrid Perovskite Photovoltaics

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Weifan Luo - , University of Fribourg (Author)
  • Sun Ju Kim - , Pusan National University (Author)
  • Nikolaos Lempesis - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Lena Merten - , University of Tübingen (Author)
  • Ekaterina Kneschaurek - , University of Tübingen (Author)
  • Mathias Dankl - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Virginia Carnevali - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Lorenzo Agosta - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Vladislav Slama - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Zachary VanOrman - , Harvard University (Author)
  • Milosz Siczek - , University of Wrocław (Author)
  • Wojciech Bury - , University of Wrocław (Author)
  • Benjamin Gallant - , University of Birmingham (Author)
  • Dominik J. Kubicki - , University of Birmingham (Author)
  • Michal Zalibera - , Slovak University of Technology (Author)
  • Laura Piveteau - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Marielle Deconinck - , Institute of Applied Physics, Chair of Emerging Electronic Technologies (gB/IFW and cfaed) (Author)
  • L. Andrés Guerrero-León - , Chair of Emerging Electronic Technologies (gB/IFW and cfaed) (Author)
  • Aaron T. Frei - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Patricia A. Gaina - , University of Fribourg (Author)
  • Eva Carteau - , University of Fribourg (Author)
  • Paul Zimmermann - , University of Tübingen (Author)
  • Alexander Hinderhofer - , University of Tübingen (Author)
  • Frank Schreiber - , University of Tübingen (Author)
  • Jacques E. Moser - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Yana Vaynzof - , Center for Advancing Electronics Dresden (cfaed), Chair of Emerging Electronic Technologies (gB/IFW and cfaed) (Author)
  • Sascha Feldmann - , Harvard University (Author)
  • Ji Youn Seo - , Pusan National University (Author)
  • Ursula Rothlisberger - , Swiss Federal Institute of Technology Lausanne (EPFL) (Author)
  • Jovana V. Milić - , University of Fribourg, Swiss Federal Institute of Technology Lausanne (EPFL) (Author)

Abstract

The stability of hybrid organic–inorganic halide perovskite semiconductors remains a significant obstacle to their application in photovoltaics. To this end, the use of low-dimensional (LD) perovskites, which incorporate hydrophobic organic moieties, provides an effective strategy to improve their stability, yet often at the expense of their performance. To address this limitation, supramolecular engineering of noncovalent interactions between organic and inorganic components has shown potential by relying on hydrogen bonding and conventional van der Waals interactions. Here, the capacity to access novel LD perovskite structures that uniquely assemble through unorthodox S-mediated interactions is explored by incorporating benzothiadiazole-based moieties. The formation of S-mediated LD structures is demonstrated, including one-dimensional (1D) and layered two-dimensional (2D) perovskite phases assembled via chalcogen bonding and S–π interactions. This involved a combination of techniques, such as single crystal and thin film X-ray diffraction, as well as solid-state NMR spectroscopy, complemented by molecular dynamics simulations, density functional theory calculations, and optoelectronic characterization, revealing superior conductivities of S-mediated LD perovskites. The resulting materials are applied in n-i-p and p-i-n perovskite solar cells, demonstrating enhancements in performance and operational stability that reveal a versatile supramolecular strategy in photovoltaics.

Details

Original languageEnglish
Article number2405622
Number of pages11
JournalAdvanced science
Volume11
Issue number32
Early online date3 Jul 2024
Publication statusPublished - 27 Aug 2024
Peer-reviewedYes