Issue 9, 2018

Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature

Abstract

We showed that the simple organic salt bromocholine bromide is a molecular ferroelectric with a moderate ferroelectric phase transition temperature (329 K). The order–disorder dynamic transition of organic cations results in symmetry breaking from the centrosymmetric paraelectric phase (P21/m) to polar ferroelectric phase (P21), affording a moderate spontaneous polarization of 1.0 μC cm−2 for the ferroelectric phase, as well as a switchable SHG signal and pyroelectric property with feasible “on/off” contrasts.

Graphical abstract: Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature

Supplementary files

Article information

Article type
Communication
Submitted
26 Janv. 2018
Accepted
06 Febr. 2018
First published
07 Febr. 2018

J. Mater. Chem. C, 2018,6, 2221-2224

Bromocholine bromide is a molecular ferroelectric with moderate phase transition temperature

S. Wang, X. Chen, B. Huang, Y. Su, W. Zhang, M. Zeng and X. Chen, J. Mater. Chem. C, 2018, 6, 2221 DOI: 10.1039/C8TC00419F

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