J Am Chem Soc 2020 Nov 3;142(46):19413-19437. Epub 2020 Nov 3.
Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, Zurich CH-8093, Switzerland.
Two- and three-dimensional lead-halide perovskite (LHP) materials are novel semiconductors that have generated broad interest owing to their outstanding optical and electronic properties. Characterization and understanding of their atomic structure and structure-property relationships are often nontrivial as a result of the vast structural and compositional tunability of LHPs as well as the enhanced structure dynamics as compared with oxide perovskites or more conventional semiconductors. Nuclear magnetic resonance (NMR) spectroscopy contributes to this thrust through its unique capability of sampling chemical bonding element-specifically (H, C, N, Cl, K, Br, Rb, I, Cs, and Pb nuclei) and locally and shedding light onto the connectivity, geometry, topology, and dynamics of bonding. Read More