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Directionally tunable and mechanically deformable ferroelectric crystals from rotating polar globular ionic molecules

Nature chemistry Volume 8 Issue 10 Page 946-952
published_at 2016-10
2022-5-18-16-492_280913revised manuscript.pdf
[fulltext] 1.12 MB
Title
Directionally tunable and mechanically deformable ferroelectric crystals from rotating polar globular ionic molecules
Abstract
Ferroelectrics have found a wide range of applications including memory elements, capacitors, and sensors. Molecular f erroelectric crystals have recently attracted growing interest as viable alternatives for conventional ceramic ferroelectrics, especially due to their non toxicity and solution processability. Herein, we show that a class of molecular compounds known as plastic crystals can exhibit ferroelectricity, provided that the constituent molecules are judiciously chosen from polar ionic molecules. The intrinsic features of plastic crystals, e.g. the rotational mot ion of molecules and phase transitions with lattice symmetry changes, provide the crystals with unique ferroelectric properties relative to conventional molecular crystals , i.e. the possibility to flexibly alter the direction of the polarization axis of a grown crystal by applying an electric field. Owing to t he tunability of the crystal orientation together with mechanical deformability, this novel type of molecular crystals represents an attractive functional material, which will undoubtedly find diverse applications.
Creators Harada Jun
Creators Shimojo Takafumi
Creators Oyamaguchi Hideaki
Creators Hasegawa Hiroyuki
Creators Takahashi Yukihiro
Creators Satomi Koichiro
Creators Suzuki Yasutaka
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Creators Kawamata Jun
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Creators Inabe Tamotsu
Source Identifiers [EISSN] 1755-4349 [PISSN] 1755-4330
Languages eng
Resource Type journal article
Publishers Nature Publishing Group
Date Issued 2016-10
Rights
Copyright © 2016, Nature Publishing Group()
File Version Accepted Manuscript
Access Rights open access
Relations
[isVersionOf] https://doi.org/10.1038/NCHEM.2567
Funding Refs
Japan Society for the Promotion of Science [crossref_funder]https://doi.org/10.13039/501100001691
Award Development of ferroelectric crystals by dynamically controlling the molecular environment in charge transfer complex crystals 26620054