Issue 75, 2022

The effect of halogenated spacer cations on structural symmetry-breaking in 2D halide double perovskites

Abstract

Herein, we present a strategy to introduce above-room temperature non-centrosymmetry into two-dimensional halide double perovskites (A′4M′M′′X8) using a halogenated A′-site organic linker, 3-chloro/bromo propyl amine. These crystals exhibit anisotropic polarization with three orders of magnitude variation between different crystallographic axes. The non-centrosymmetry is further confirmed by piezo-force microscopy studies and its role in the thermal and optical properties was investigated.

Graphical abstract: The effect of halogenated spacer cations on structural symmetry-breaking in 2D halide double perovskites

Supplementary files

Article information

Article type
Communication
Submitted
13 شوال 1443
Accepted
19 محرم 1444
First published
19 محرم 1444

Chem. Commun., 2022,58, 10504-10507

The effect of halogenated spacer cations on structural symmetry-breaking in 2D halide double perovskites

P. Siwach, P. Sikarwar, S. A. Rajput, S. Antharjanam and A. K. Chandiran, Chem. Commun., 2022, 58, 10504 DOI: 10.1039/D2CC02747J

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