Tuning of birefringence, response time, and dielectric anisotropy by the dispersion of fluorescent dye into the nematic liquid crystal

Tuning of birefringence, response time, and dielectric anisotropy by the dispersion of... In this study, fluorescent dye benzo 2,1,3 thiadiazole has been dispersed into the pure nematic liquid crystal (NLC) 2020, which is composed of fluorinated 4′-alkylphenyl-4-isothiocyanatotolanes, in three different concentrations. Electro-optical and dielectric parameters have been investigated in the present work. Birefringence has been calculated by transmittance technique for pure and dye-dispersed system, and found to be increased for dispersed system. This is the key finding of the present investigation. In this work, response time has also been calculated by optical switching method and found to be decreased after the dispersion of fluorescent dye into the pure NLC 2020. Contrast ratio has also been measured here and found to be increased for the dispersed system. Relative permittivity has been found to be decreased after the dispersion of dye. Dielectric anisotropy has also been calculated for pure NLC and dye–NLC dispersed system, and found to be decreased for dispersed system. The present investigation may be helpful in the improvement of response time of liquid crystal-based devices. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Physics A: Materials Science Processing Springer Journals

Tuning of birefringence, response time, and dielectric anisotropy by the dispersion of fluorescent dye into the nematic liquid crystal

Loading next page...
 
/lp/springer_journal/tuning-of-birefringence-response-time-and-dielectric-anisotropy-by-the-Ps0frwR8fm
Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Physics; Condensed Matter Physics; Optical and Electronic Materials; Nanotechnology; Characterization and Evaluation of Materials; Surfaces and Interfaces, Thin Films; Operating Procedures, Materials Treatment
ISSN
0947-8396
eISSN
1432-0630
D.O.I.
10.1007/s00339-018-1878-9
Publisher site
See Article on Publisher Site

Abstract

In this study, fluorescent dye benzo 2,1,3 thiadiazole has been dispersed into the pure nematic liquid crystal (NLC) 2020, which is composed of fluorinated 4′-alkylphenyl-4-isothiocyanatotolanes, in three different concentrations. Electro-optical and dielectric parameters have been investigated in the present work. Birefringence has been calculated by transmittance technique for pure and dye-dispersed system, and found to be increased for dispersed system. This is the key finding of the present investigation. In this work, response time has also been calculated by optical switching method and found to be decreased after the dispersion of fluorescent dye into the pure NLC 2020. Contrast ratio has also been measured here and found to be increased for the dispersed system. Relative permittivity has been found to be decreased after the dispersion of dye. Dielectric anisotropy has also been calculated for pure NLC and dye–NLC dispersed system, and found to be decreased for dispersed system. The present investigation may be helpful in the improvement of response time of liquid crystal-based devices.

Journal

Applied Physics A: Materials Science ProcessingSpringer Journals

Published: Jun 1, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off