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

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Significant interest exists in lead trihalides that present the perovskite structure owing to their demonstrated potential in photovoltaic, lasing, and display applications. These materials are also notable for their unusual phase behavior often displaying easily accessible phase transitions. In this work, time-resolved X-ray diffraction, performed on perovskite cesium lead bromide nanocrystals, maps the lattice response to controlled excitation fluence. These nanocrystals undergo a reversible, photoinduced orthorhombic-to-cubic phase transition which is discernible at fluences greater than 0.34 mJ cm−2 through the loss of orthorhombic features and shifting of high-symmetry peaks. This transition recovers on the timescale of 510 ± 100 ps. A reversible crystalline-to-amorphous transition, observable through loss of Bragg diffraction intensity, occurs at higher fluences (greater than 2.5 mJ cm−2). These results demonstrate that light-driven phase transitions occur in perovskite materials, which will impact optoelectronic applications and enable the manipulation of non-equilibrium phase characteristics of the broad perovskite material class.

Original languageEnglish
Article number504
JournalNature Communications
Volume10
Issue number1
DOIs
Publication statusPublished - Dec 1 2019

Fingerprint

Phase Transition
Nanoparticles
Nanocrystals
nanocrystals
Phase transitions
fluence
Cesium
Phase behavior
X-Ray Diffraction
Crystal lattices
Optoelectronic devices
diffraction
cesium
Diffraction
Display devices
lasing
bromides
manipulators
Crystalline materials
Light

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals. / Kirschner, Matthew S.; Diroll, Benjamin T.; Guo, Peijun; Harvey, Samantha M.; Helweh, Waleed; Flanders, Nathan C.; Brumberg, Alexandra; Watkins, Nicolas E.; Leonard, Ariel A.; Evans, Austin M.; Wasielewski, Michael R; Dichtel, William R.; Zhang, Xiaoyi; Chen, Lin X.; Schaller, Richard D.

In: Nature Communications, Vol. 10, No. 1, 504, 01.12.2019.

Research output: Contribution to journalArticle

Kirschner, MS, Diroll, BT, Guo, P, Harvey, SM, Helweh, W, Flanders, NC, Brumberg, A, Watkins, NE, Leonard, AA, Evans, AM, Wasielewski, MR, Dichtel, WR, Zhang, X, Chen, LX & Schaller, RD 2019, 'Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals', Nature Communications, vol. 10, no. 1, 504. https://doi.org/10.1038/s41467-019-08362-3
Kirschner MS, Diroll BT, Guo P, Harvey SM, Helweh W, Flanders NC et al. Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals. Nature Communications. 2019 Dec 1;10(1). 504. https://doi.org/10.1038/s41467-019-08362-3
Kirschner, Matthew S. ; Diroll, Benjamin T. ; Guo, Peijun ; Harvey, Samantha M. ; Helweh, Waleed ; Flanders, Nathan C. ; Brumberg, Alexandra ; Watkins, Nicolas E. ; Leonard, Ariel A. ; Evans, Austin M. ; Wasielewski, Michael R ; Dichtel, William R. ; Zhang, Xiaoyi ; Chen, Lin X. ; Schaller, Richard D. / Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals. In: Nature Communications. 2019 ; Vol. 10, No. 1.
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