Compositional nanodomain formation in hybrid formate perovskites. Issue 81 (28th September 2017)

• Record Type: Journal Article
• Authors: Donlan, Edwina A.; Boström, Hanna L. B.; Geddes, Harry S.; Reynolds, Emily M.; Goodwin, Andrew L.
• Is Part Of: Chemical communications. Volume 53:Issue 81(2017)
• Page Start: 11233
• Page End: 11236
• Publication Date: 2017-09-28
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c7cc06928f
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : We discover compositional nanodomains in mixed-metal hybrid formate perovskites that are conceptually related to polar nanoregions in relaxor ferroelectrics. Abstract : We report the synthesis and structural characterisation of three mixed-metal formate perovskite families [C(NH2 )3 ]Cu x M1− 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.