Mechanochemical synthesis of 0D and 3D cesium lead mixed halide perovskites

Abhoy Karmakar, Mya S. Dodd, Xiaoyue Zhang, Meagan S. Oakley, Mariusz Klobukowski, Vladimir K. Michaelis

Research output: Contribution to journalArticlepeer-review

Abstract

A simplified mechanochemical synthesis approach for Cs-containing mixed halide perovskite materials of lower and higher dimensionality (0D and 3D, respectively) is presented with stoichiometric control from their halide salts, CsX and PbX2 (X = Cl, Br, I). Excellent optical bandgap tunability through halide substitution is supported by property measurements and changes to the materials' structure. Complementary NMR and XRD methods, along with support from DFT calculations, reveal highly crystalline 0D and 3D solid solutions with a complex arrangement of [PbX6−xXx′]4− pseudooctahedra caused by halide distribution about the Pb centre.

Original languageEnglish
Pages (from-to)5079-5082
Number of pages4
JournalChemical Communications
Volume55
Issue number35
Early online date3 Apr 2019
DOIs
Publication statusPublished - 7 May 2019

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