Planar and Vertical Alignment of Rod-like and Bent-core Liquid Crystals Using Functionalized Indium Tin Oxide Substrates

Sivaranjini, B.; Umadevi, S.; Khan, Raj Kumar; Pratibha, R.; Dekshinamoorthy, Amuthan; Vijayaraghavan, Saranyan; Ganesh, V.

doi:10.1080/02678292.2021.1995061

Cited by 4 publications

(2 citation statements)

References 51 publications

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“…Thin films obtained by casting without any thermal treatment were used as reference in order to evaluate the influence of the ordering on electrical conduction. As can be seen in Figure 2 , the ordered films presented intense birefringence, with a fine Schlieren texture, indicating a nematic mesophase in which the azomethine rigid mesogens were preponderantly aligned parallel to a local director [ 22 , 23 , 24 , 25 ]. The texture clarity was correlated to the percentage of mesogen in the polymer, with more resolved textures observed for polymers containing 75% ( P2 ) or 50% ( P3 ) mesogens.…”

Section: Resultsmentioning

confidence: 99%

Impact of the Liquid Crystal Order of Poly(azomethine-sulfone)s on the Semiconducting Properties

et al. 2022

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Organic semiconductors are an attractive class of materials with large application in various fields, from optoelectronics to biomedicine. Usually, organic semiconductors have low electrical conductivity, and different routes towards improving said conductivity are being investigated. One such method is to increase their ordering degree, which not only improves electrical conduction but promotes cell growth, adhesion, and proliferation at the polymer–tissue interface. The current paper proposes a mathematical model for understanding the influence of the ordering state on the electrical properties of the organic semiconductors. To this end, a series of aromatic poly(azomethine)s were prepared as thin films in both amorphous and ordered states, and their supramolecular and electrical properties were analyzed by polarized light microscopy and surface type cells, respectively. Furthermore, the film surface characteristics were investigated by atomic force microscopy. It was established that the manufacture of thin films from mesophase state induced an electrical conductivity improvement of one order of magnitude. A mathematical model was developed in the framework of a multifractal theory of motion in its Schrodinger representation. The model used the order degree of the thin films as a fractality measure of the physical system’s representation in the multifractal space. It proposed two types of conductivity, which manifest at different ranges of fractalization degrees. The mathematical predictions were found to be in line with the empirical data.

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Section: Resultsmentioning

confidence: 99%

Impact of the Liquid Crystal Order of Poly(azomethine-sulfone)s on the Semiconducting Properties

et al. 2022

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“…In practical terms, it is more expedient to design LC elements that may be used both with (active mode) and without (passive mode) an electric field. Aligning surfaces with the needed morphology [8,9] and the process of nanoparticle doping of the bulk of LCs [10][11][12] are used to enhance the brightness, contrast, and response speed. Refraction index anisotropy n in an LC medium may change after the introduction of nanoparticles.…”

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Rotation of the light polarization plane in Liquid Crystals with sensitizers based on WS-=SUB=-2-=/SUB=- nanotubes

Toikka

Каманина

2022

Technical Physics Letters

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The effect of WS2 nanotubes on the rotation of the polarization plane of p-type laser radiation in the nematic liquid-crystal composites based on 4'-pentyl-4-biphenylcarbonitrile (5CB) has been considered. The correlation between the concentration of the injected sensitizer and the phase shift of the optical beam has been demonstrated. The prospects of these materials in display technologies, laser technology and quantum cryptography has been shown. Keywords: liquid crystals, sensitizing, WS2 nanotubes, rotation of the light plane of polarization.

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Preparation of Pickering emulsion hydrogels containing indium(III) extractants and their indium(III) recycling properties

Chen

Gao

Zhao

et al. 2023

Clean Techn Environ Policy

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Planar and Vertical Alignment of Rod-like and Bent-core Liquid Crystals Using Functionalized Indium Tin Oxide Substrates

Cited by 4 publications

References 51 publications

Impact of the Liquid Crystal Order of Poly(azomethine-sulfone)s on the Semiconducting Properties

Impact of the Liquid Crystal Order of Poly(azomethine-sulfone)s on the Semiconducting Properties

Rotation of the light polarization plane in Liquid Crystals with sensitizers based on WS-=SUB=-2-=/SUB=- nanotubes

Preparation of Pickering emulsion hydrogels containing indium(III) extractants and their indium(III) recycling properties

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