Piezoelectric effect in a cholesteric liquid crystal layer subjected to shear vibration
- 15 July 1976
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 29 (2) , 71-73
- https://doi.org/10.1063/1.88970
Abstract
Piezoelectric effects are observed in a mixed cholesteric liquid crystal layer. It is sandwiched by a pair of nesa‐coated glass plates one of which is subjected to lateral motion to develop the shear vibration in the layer. It is found that the electric potential is generated from the layer, the frequency of which is the same as that of the exciting vibration. Three cases of the molecular orientation process for the liquid crystal layer are tested: (i) previous impression of dc voltage, (ii) lecithin application on the surfaces of the substrate glass plates, and (iii) previous static shear strain on the layer. 10–20 mV peak‐to‐peak (p‐p) are generated for the vibratory displacement of 1 μm (p‐p) of 25 kHz.Keywords
This publication has 3 references indexed in Scilit:
- Vibro-optical and vibro-dielectric effect in nematic liquid crystal layerJournal of Sound and Vibration, 1975
- Inherent Bounds to the Elasticity and Flexoelectricity of Liquid CrystalsMolecular Crystals and Liquid Crystals, 1974
- Piezoelectric Effects in Liquid CrystalsPhysical Review Letters, 1969