Issue 3, 2022

Highest-Tc single-component homochiral organic ferroelectrics

Abstract

Organic single-component ferroelectrics with low molecular mass have drawn great attention for application in organic electronics. However, the discovery of high-Tc single-component organic ferroelectrics has been very scarce. Herein, we report a pair of homochiral single-component organic ferroelectrics (R)-10-camphorsulfonylimine and (S)-10-camphorsulfonylimine under the guidance of ferroelectric chiral chemistry. They crystallize in the chiral–polar space group P21, and their mirror image relations have been identified using vibrational circular dichroism spectra. They both exhibit 422F2 multiaxial ferroelectricity with Tc as high as 429 K. Besides, they possess superior acoustic impedance characteristics with a value of 2.45 × 106 kg s−1 m−2, lower than that of PVDF. To our knowledge, enantiomeric (R and S)-10-camphorsulfonylimine show the highest Tc among the known organic single-component ferroelectrics and low acoustic impedance well matching with that of bodily tissues. This work promotes the development of high-performance organic single-component ferroelectrics and is of great inspiration to explore their application in next-generation flexible smart devices.

Graphical abstract: Highest-Tc single-component homochiral organic ferroelectrics

Supplementary files

Article information

Article type
Edge Article
Submitted
06 Aug. 2021
Accepted
15 Nov. 2021
First published
15 Nov. 2021
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2022,13, 657-664

Highest-Tc single-component homochiral organic ferroelectrics

P. Li, Y. Ai, Y. Zeng, J. Liu, Z. Xu and Z. Wang, Chem. Sci., 2022, 13, 657 DOI: 10.1039/D1SC04322F

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