Nature Communications (May 2016)

Photo-induced halide redistribution in organic–inorganic perovskite films

  • Dane W. deQuilettes,
  • Wei Zhang,
  • Victor M. Burlakov,
  • Daniel J. Graham,
  • Tomas Leijtens,
  • Anna Osherov,
  • Vladimir Bulović,
  • Henry J. Snaith,
  • David S. Ginger,
  • Samuel D. Stranks

DOI
https://doi.org/10.1038/ncomms11683
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 9

Abstract

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Visual evidence for photo-induced ionic migration in perovskite films without contacts is lacking. Here, the authors use a unique combination of confocal photoluminescence microscopy and chemical imaging to correlate the local changes in photophysics with composition in CH3NH3PbI3films under illumination.