Please use this identifier to cite or link to this item:
Title: Antiferroelectric bent-core liquid crystal for possible high-power capacitors and electrocaloric devices
Author(s): Saha, Rony
Feng, Chenrun
Eremin, Alexey
Jákli, Antal
Issue Date: 2020
Type: Article
Language: English
URN: urn:nbn:de:gbv:ma9:1-1981185920-366851
Subjects: Bent-core liquid crystals
Energy storage
Abstract: We present small-angle X-ray scattering, polarized optical microscopy and electric current measurements of a sulfur-containing bent-core liquid crystal material for characterization of the layer and director structures, thermally and electrically driven transitions between antiferroelectric and ferroelectric structures and switching properties. It was found that the material has polarization-modulated homochiral synclinic ferroelectric (SmCsPFmod), homochiral anticlinic antiferroelectric (SmCaPA) and racemic synclininc antiferroelectric (SmCsPA) structures that can be reversibly switched between each other either thermally and/or electrically. High switching polarization combined with softness of the liquid crystalline structure makes this compound a good candidate for applications in high-power capacitors and electrocaloric devices.
Open Access: Open access publication
License: (CC BY 4.0) Creative Commons Attribution 4.0(CC BY 4.0) Creative Commons Attribution 4.0
Sponsor/Funder: DFG-Publikationsfonds 2020
Journal Title: Crystals
Publisher: MDPI
Publisher Place: Basel
Volume: 10
Issue: 8
Original Publication: 10.3390/cryst10080652
Page Start: 1
Page End: 11
Appears in Collections:Fakultät für Naturwissenschaften (OA)

Files in This Item:
File Description SizeFormat 
Saha et al._Antiferroelectric_2020.pdfZweitveröffentlichung3.13 MBAdobe PDFThumbnail