Nature Communications (Jan 2019)

Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals

  • Matthew S. Kirschner,
  • Benjamin T. Diroll,
  • Peijun Guo,
  • Samantha M. Harvey,
  • Waleed Helweh,
  • Nathan C. Flanders,
  • Alexandra Brumberg,
  • Nicolas E. Watkins,
  • Ariel A. Leonard,
  • Austin M. Evans,
  • Michael R. Wasielewski,
  • William R. Dichtel,
  • Xiaoyi Zhang,
  • Lin X. Chen,
  • Richard D. Schaller

DOI
https://doi.org/10.1038/s41467-019-08362-3
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 8

Abstract

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Lead trihalide perovskites are notable for their excellent optoelectronic properties and uncommon phase behavior. Here, Kirschner et al. show that cesium lead bromide nanocrystals experience a reversible orthorhombic-to-cubic phase transition at moderate excitation fluences and become amorphous at higher fluences.