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Polymers
Special Issues
Polymer-Dispersed Liquid Crystals, Fundamental Principles, Materials, Technology, and Applications
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Polymer-Dispersed Liquid Crystals, Fundamental Principles, Materials, Technology, and Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Processing and Engineering".

Deadline for manuscript submissions: closed (20 January 2021) | Viewed by 5987

Special Issue Editors

Dr. Suresh C. Sharma

E-Mail Website
Guest Editor
Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA
Interests: Polymer-Dispersed Liquid Crystals; Nanomaterials and Technology; Optical Spectroscopy; Semiconductors; Thin films; Metamaterials, Defects in Materials
Dr. Robert Ramsey

E-Mail Website
Guest Editor
RealD Me, Boulder, CO, USA
Interests: liquid crystal displays; directional displays; light-field displays; polymer-dispersed liquid crystals; birefringent thin films; polarization control

Special Issue Information

Dear Colleagues,

I am pleased to inform you that Dr. Robert Ramsey of RealD Me, Boulder, Colorado and I will be Guest Editors of a special volume of Polymers, “Polymer-Dispersed Liquid Crystals; Fundamental Principles, Materials, Technology, and Applications”. This volume will be published by MDPI publishers. As the proposed title suggests, this special volume will include contributions on a variety of topics on the physics and chemistry of relevant materials, technology, and applications of polymer-dispersed liquid crystals. We invite both detailed review articles and contributed papers on the recent important advances in the fundamental, as well as applied aspects of PDLCs. The submissions will go through standard practice of peer-review to ensure that they are scientifically relevant, well-organized, and clearly written in a style consistent with publications in MDPI journals.

Professor Suresh C Sharma
Dr. Robert Ramsey
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Polymer-Dispersed Liquid Crystals
  • Nanomaterials and Technology
  • Optical Spectroscopy
  • Semiconductors
  • Thin films
  • Metamaterials
  • Defects in Materials

Published Papers (2 papers)

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Research

11 pages, 18576 KiB  
Article
Polymer Dispersed Cholesteric Liquid Crystals with a Toroidal Director Configuration under an Electric Field
by Anna P. Gardymova, Mikhail N. Krakhalev, Victor Ya. Zyryanov, Alexandra A. Gruzdenko, Andrey A. Alekseev and Vladimir Yu. Rudyak
Polymers 2021, 13(5), 732; https://doi.org/10.3390/polym13050732 - 27 Feb 2021
Cited by 12 | Viewed by 2739
Abstract
The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point [...] Read more.
The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers. Full article
(This article belongs to the Special Issue Polymer-Dispersed Liquid Crystals, Fundamental Principles, Materials, Technology, and Applications)
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12 pages, 5332 KiB  
Article
Submillisecond-Response Polymer Network Liquid Crystal Phase Modulators
by Yannanqi Li, Zhiyong Yang, Ran Chen, Lingchao Mo, Juanli Li, Minggang Hu and Shin-Tson Wu
Polymers 2020, 12(12), 2862; https://doi.org/10.3390/polym12122862 - 30 Nov 2020
Cited by 13 | Viewed by 2493
Abstract
A submillisecond-response and light scattering-free polymer-network liquid crystal (PNLC) for infrared spatial light modulators is demonstrated. Our new liquid crystal host exhibits a higher birefringence, comparable dielectric anisotropy, and slightly lower visco-elastic constant than a commonly employed commercial material, HTG-135200. Moreover, the electro-optical [...] Read more.
A submillisecond-response and light scattering-free polymer-network liquid crystal (PNLC) for infrared spatial light modulators is demonstrated. Our new liquid crystal host exhibits a higher birefringence, comparable dielectric anisotropy, and slightly lower visco-elastic constant than a commonly employed commercial material, HTG-135200. Moreover, the electro-optical performance of our PNLCs with different monomer concentrations, cell gaps, and liquid crystal (LC) hosts is compared and discussed from four aspects: operating voltage, hysteresis, relaxation time, and light scattering loss. The temperature effect on hysteresis is also analyzed. Potential applications of PNLCs for laser beam steering and spatial light modulators especially in the infrared region are foreseeable. Full article
(This article belongs to the Special Issue Polymer-Dispersed Liquid Crystals, Fundamental Principles, Materials, Technology, and Applications)
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