REAL

Liquid Piezoelectric Materials: Linear Electromechanical Effect in Fluid Ferroelectric Nematic Liquid Crystals

Máthé, Marcell Tibor and Himel, M.S.H. and Adaka, A. and Gleeson, J.T. and Sprunt, S. and Salamon, Péter and Jákli, Antal (2024) Liquid Piezoelectric Materials: Linear Electromechanical Effect in Fluid Ferroelectric Nematic Liquid Crystals. ADVANCED FUNCTIONAL MATERIALS, 34 (18). ISSN 1616-301X

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Abstract

The first demonstration of converse piezoelectricity in 3D fluids is presented by measuring a linear electromechanical effect in ferroelectric nematic liquid crystals. The observed piezoelectric coupling constant below 6 kHz electric field is larger than 1 nC/N, comparable to, or better than, values for the strongest solid piezoelectric materials. Symmetry considerations indicate that the alignment of the ferroelectric nematic liquid crystal in the experimental study is not optimized, so the observed signal is likely only a fraction of the theoretically achievable signal. Understanding the electromechanical response of ferroelectric nematics will enable mechanical energy harvesting and open up a new avenue for developing fluid actuators, micro positioners, and electrically tunable optical lenses.

Item Type: Article
Additional Information: Export Date: 13 August 2024 CODEN: AFMDC
Subjects: Q Science / természettudomány > QC Physics / fizika
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 24 Sep 2024 08:37
Last Modified: 24 Sep 2024 08:37
URI: https://real.mtak.hu/id/eprint/205649

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