M. Šimėnas, S. Balčiu̅nas, Š. Svirskas, M. Kinka, V. Samulionis, R. Grigalaitis, J. Banys, A. Gągor, M. Ma̧czka, A. Garbaras, A. Sieradzki
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Peculiarities of Dipolar Ordering in Mixed Cation Halide Perovskites
Here, we present a multitechnique experimental study of structural phase transitions and dipolar dynamics in the novel mixed methylammonium (MA)/dimethylammonium (DMA) MA1-xDMAxPbBr3 hybrid perovskites. The obtained results demonstrate a suppression of the structural phase transitions and stabilization of the cubic phase even for a small amount of DMA cations. For high DMA concentration, we observe a disappearance of the structural phase transitions and emergence of a glassy phase of electric dipoles.
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