Enhanced stability of the nematic phase of 4-pentyl-4ʹ-cyanobiphenyl due to the dispersion of copper nanoparticles

Srivastava, Geetanjali; Jaiswal, Mayank; Singh, Praveen Kumar; Iqbal, Amir; Dąbrowski, R.; Dhar, Ravindra

doi:10.1080/02678292.2023.2219990

Cited by 12 publications

(3 citation statements)

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“…Δε′ decreases for composite 1 and then increases for composite 2. GNRs lying in the local electric field of LC molecules form electric dipoles due to the induced charges , as shown in Figure . These induced charges (and hence dipoles) have an electric field opposite to the main electric field of the LC molecules.…”

Section: Resultsmentioning

confidence: 99%

“…Extraction of the correct frequency response of permittivity and loss after the removal of the low- and high-frequency parasitic effects , are shown in Figures and .…”

Section: Resultsmentioning

confidence: 99%

“…Experimental frequency response of permittivity and loss for Pure 6CHBT and composites 1 and 2 are shown in Figure 9 for the homeotropic cells. Extraction of the correct frequency response of permittivity and loss after the removal of the low-and high-frequency parasitic effects 45,46 are shown in Figures 10 and 11.…”

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confidence: 99%

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Gold Nanorod-Induced Effects in a Mesogenic Compound 4-(trans-4-n-Hexylcyclohexyl) isothiocyanatobenzene

Lal,

Verma,

Chirra

et al. 2023

ACS Omega

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Gold nanorods (GNRs) have a capsule-like structure with different optical properties than spherical gold nanoparticles due to surface plasmon resonance. Liquid crystals (LCs) are mesogenic compounds having crystal-like orientation and liquid-like fluidity. They are important materials from a technological point of view. Both GNRs and LC compounds are anisotropic in shape and properties. Different nano entities show interesting results when dispersed in different liquid crystalline materials which are instrumental from the application point of view. In the present work, GNRs have been dispersed in nematic liquid crystalline materials, namely 4-(trans-4-n-hexylcyclohexyl) isothiocyanatobenzene (6CHBT). Calorimetric, texture, spectroscopic, and dielectric studies were carried out for a pure 6CHBT and its composites with GNRs. Different calorimetric and dielectric parameters such as transition temperature, enthalpy, heat flow, permittivity, dielectric strength, dielectric anisotropy, and relaxation frequency have been determined, and the effect of GNRs has been explored. This article gives an insight into the influence of GNRs on the morphology and anisotropic physical properties of the nematic liquid crystalline material.

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Section: Resultsmentioning

confidence: 99%

“…Extraction of the correct frequency response of permittivity and loss after the removal of the low- and high-frequency parasitic effects , are shown in Figures and .…”

Section: Resultsmentioning

confidence: 99%