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Issue 12, 2015
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CH3NH3PbI3 perovskite single crystals: surface photophysics and their interaction with the environment

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Abstract

Here we identify structural inhomogeneity on a micrometer scale across the surface of a CH3NH3PbI3 perovskite single crystal. At the crystal edge a local distortion of the crystal lattice is responsible for a widening of the optical bandgap and faster photo-carrier recombination. These effects are inherently present at the edge of the crystal, and further enhanced upon water intercalation, as a preliminary step in the hydration of the perovskite material.

Graphical abstract: CH3NH3PbI3 perovskite single crystals: surface photophysics and their interaction with the environment

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Publication details

The article was received on 14 Jul 2015, accepted on 17 Sep 2015 and first published on 17 Sep 2015


Article type: Edge Article
DOI: 10.1039/C5SC02542G
Citation: Chem. Sci., 2015,6, 7305-7310
  • Open access: Creative Commons BY license
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    CH3NH3PbI3 perovskite single crystals: surface photophysics and their interaction with the environment

    G. Grancini, V. D'Innocenzo, E. R. Dohner, N. Martino, A. R. Srimath Kandada, E. Mosconi, F. De Angelis, H. I. Karunadasa, E. T. Hoke and A. Petrozza, Chem. Sci., 2015, 6, 7305
    DOI: 10.1039/C5SC02542G

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