Investigations on dielectric relaxations, memory and thermistor applications in a liquid crystal nematogen

A hydrogen bond liquid crystal comprising of 4-butyl benzoic acid and octyloxy benzoic acid is synthesised by well-documented methods which exhibits nematic phase with a wide thermal range. The aim of the present investigation is to investigate the aptness of the synthesised liquid crystal for appli...

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Bibliographic Details
Published inLiquid crystals Vol. 50; no. 2; pp. 210 - 217
Main Author M L N, Madhu Mohan
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 26.01.2023
Taylor & Francis Ltd
Subjects
4-butyl benzoic acid
activation energy
Benzoic acid
Cole-Cole plots
Dielectric relaxation
dielectric relaxations
Hydrogen bonds
Hysteresis loops
Liquid crystals
Nematic crystals
Nematogen
octyloxy benzoic acid
Thermistors
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Summary:A hydrogen bond liquid crystal comprising of 4-butyl benzoic acid and octyloxy benzoic acid is synthesised by well-documented methods which exhibits nematic phase with a wide thermal range. The aim of the present investigation is to investigate the aptness of the synthesised liquid crystal for applicational perspectives. Using this nematic liquid crystal, characteristics of thermistor and memory storage claims are demonstrated. The dielectric hysteresis loop is studied with respect to temperature, frequency and applied field. On the academic front, dielectric relaxations in nematic phase are extensively studied. Arrhenius plots are constructed and the activation energy (eV) is elucidated. Further, the growth order of the nematic phase is also estimated from the dielectric studies.
ISSN:0267-8292
1366-5855
DOI:10.1080/02678292.2022.2110957