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ACS Cent Sci. 2020 Jul 22;6(7):1138-1149. doi: 10.1021/acscentsci.0c00587. Epub 2020 Jun 23.

Bulk and Nanocrystalline Cesium Lead-Halide Perovskites as Seen by Halide Magnetic Resonance.

ACS central science

Laura Piveteau, Marcel Aebli, Nuri Yazdani, Marthe Millen, Lukas Korosec, Franziska Krieg, Bogdan M Benin, Viktoriia Morad, Christophe Piveteau, Toni Shiroka, Aleix Comas-Vives, Christophe Copéret, Aaron M Lindenberg, Vanessa Wood, René Verel, Maksym V Kovalenko

Affiliations

  1. Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, Zürich CH-8093, Switzerland.
  2. Empa-Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Überlandstrasse 129, Dübendorf CH-8600, Switzerland.
  3. Department of Information Technology and Electrical Engineering, ETH Zürich, Zürich CH-8092, Switzerland.
  4. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States.
  5. Department of Physics, ETH Zürich, Otto Stern Weg 1, Zürich CH-8093, Switzerland.
  6. Paul Scherrer Institute, Villigen PSI CH-5232, Switzerland.
  7. Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.

PMID: 32724848 PMCID: PMC7379391 DOI: 10.1021/acscentsci.0c00587

Abstract

Lead-halide perovskites increasingly mesmerize researchers because they exhibit a high degree of structural defects and dynamics yet nonetheless offer an outstanding (opto)electronic performance on par with the best examples of structurally stable and defect-free semiconductors. This highly unusual feature necessitates the adoption of an experimental and theoretical mindset and the reexamination of techniques that may be uniquely suited to understand these materials. Surprisingly, the suite of methods for the structural characterization of these materials does not commonly include nuclear magnetic resonance (NMR) spectroscopy. The present study showcases both the utility and versatility of halide NMR and NQR (nuclear quadrupole resonance) for probing the structure and structural dynamics of CsPbX

Copyright © 2020 American Chemical Society.

Conflict of interest statement

The authors declare no competing financial interest.

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