Nature Communications (Apr 2016)

Giant photostriction in organic–inorganic lead halide perovskites

  • Yang Zhou,
  • Lu You,
  • Shiwei Wang,
  • Zhiliang Ku,
  • Hongjin Fan,
  • Daniel Schmidt,
  • Andrivo Rusydi,
  • Lei Chang,
  • Le Wang,
  • Peng Ren,
  • Liufang Chen,
  • Guoliang Yuan,
  • Lang Chen,
  • Junling Wang

DOI
https://doi.org/10.1038/ncomms11193
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 8

Abstract

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The photophysics of lead halide perovskites is under intense investigation. Here, the authors use force microscopy on single crystals to show that light induces drastic lattice changes, and propose that the weakening of the hydrogen coupling under illumination is responsible for the lattice dilatation.