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Compositional nanodomain formation in hybrid formate perovskites
Authors:
Edwina A.
Donlan
(University of Oxford)
,
Hanna L. B.
Bostroem
(University of Oxford)
,
Harry S.
Geddes
(University of Oxford)
,
Emily M.
Reynolds
(University of Oxford)
,
Andrew L.
Goodwin
(University of Oxford)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Chem. Commun.
, VOL 309
State:
Published (Approved)
Published:
September 2017
Diamond Proposal Number(s):
13284
Abstract: We report the synthesis and structural characterisation of three mixed-metal formate perovskite families [C(NH2)3]CuxM1−x(HCOO)3 (M = Mn, Zn, Mg). Using a combination of infrared spectroscopy, non-negative matrix factorization, and reverse Monte Carlo refinement, we show that the Mn- and Zn-containing compounds support compositional nanodomains resembling the polar nanoregions of conventional relaxor ferroelectrics. The M = Mg family exhibits a miscibility gap that we suggest reflects the limiting behaviour of nanodomain formation.
Subject Areas:
Chemistry,
Materials
Instruments:
I11-High Resolution Powder Diffraction