The influence of deuteration on the crystal structure of hybrid halide perovskites: a temperature-dependent neutron diffraction study of FAPbBr3

Franz, A.; Többens, D.M.; Lehmann, F.; Kärgell, M.; Schorr, S.

doi:10.1107/S2052520620002620

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 9
Evolution of the lattice parameters in terms of increasing temperature of hydrogenous (upper view) and deuterated (lower view) FAPbBr₃. The inset in the bottom figure displays the zoomed region between 0 and 10 K. For a better comparability the pseudocubic lattice parameters are displayed. The error bars are smaller than the symbol sizes and the dashed lines are only a guide for the eye. The pseudocubic a lattice parameter (black squares) in (D₄)-FAPbBr₃ shows an unusual thermal behaviour shortly before the phase transition from Pnma to P4/mbm.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 76| Part 2| April 2020| Pages 267-274

https://doi.org/10.1107/S2052520620002620

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