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A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls

A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls

In mixtures of nematic liquid crystals with opposite signs of dielectric anisotropy (alkylcyanobiphenyls and azoxybenzenes), a possibility of photoinduced Freedericks-type transition was realized, which could be observed both by optical transmission in a standard geometry and by changes in electric...

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Main Authors: Lisetski, L.N., Samoilov, A.N., Minenko, S.S., Fedoryako, A.P., Bidna, T.V.
Format: Article
Language:English
Published: НТК «Інститут монокристалів» НАН України 2018
Series:Functional Materials
Subjects:
Characterization and properties
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/157186
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spelling irk-123456789-1571862019-06-20T01:27:23Z A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls Lisetski, L.N. Samoilov, A.N. Minenko, S.S. Fedoryako, A.P. Bidna, T.V. Characterization and properties In mixtures of nematic liquid crystals with opposite signs of dielectric anisotropy (alkylcyanobiphenyls and azoxybenzenes), a possibility of photoinduced Freedericks-type transition was realized, which could be observed both by optical transmission in a standard geometry and by changes in electric conductivity. UV irradiation leads to lowering of the planar-to-homeotropic transition threshold, and at a certain bias voltage a photoinduced transition could be realized. Trans-cis isomerization of azoxy component decreases the anisometry of its molecules, resulting in higher positive dielectric anisotropy of the material. Prospects of application of the reported effect in optoelectronic devices are discussed. 2018 Article A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls / L.N. Lisetski, A.N. Samoilov, S.S. Minenko, A.P. Fedoryako, T.V. Bidna // Functional Materials. — 2018. — Т. 25, № 4. — С. 681-683. — Бібліогр.: 10 назв. — англ. 1027-5495 DOI:https://doi.org/10.15407/fm25.04.681 http://dspace.nbuv.gov.ua/handle/123456789/157186 en Functional Materials НТК «Інститут монокристалів» НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Characterization and properties
Characterization and properties
spellingShingle Characterization and properties
Characterization and properties
Lisetski, L.N.
Samoilov, A.N.
Minenko, S.S.
Fedoryako, A.P.
Bidna, T.V.
A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls
Functional Materials
description In mixtures of nematic liquid crystals with opposite signs of dielectric anisotropy (alkylcyanobiphenyls and azoxybenzenes), a possibility of photoinduced Freedericks-type transition was realized, which could be observed both by optical transmission in a standard geometry and by changes in electric conductivity. UV irradiation leads to lowering of the planar-to-homeotropic transition threshold, and at a certain bias voltage a photoinduced transition could be realized. Trans-cis isomerization of azoxy component decreases the anisometry of its molecules, resulting in higher positive dielectric anisotropy of the material. Prospects of application of the reported effect in optoelectronic devices are discussed.
format Article
author Lisetski, L.N.
Samoilov, A.N.
Minenko, S.S.
Fedoryako, A.P.
Bidna, T.V.
author_facet Lisetski, L.N.
Samoilov, A.N.
Minenko, S.S.
Fedoryako, A.P.
Bidna, T.V.
author_sort Lisetski, L.N.
title A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls
title_short A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls
title_full A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls
title_fullStr A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls
title_full_unstemmed A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls
title_sort novel photoelectrooptical effect based on freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls
publisher НТК «Інститут монокристалів» НАН України
publishDate 2018
topic_facet Characterization and properties
url http://dspace.nbuv.gov.ua/handle/123456789/157186
citation_txt A novel photoelectrooptical effect based on Freedericksz-type transition in nematic mixtures of azoxy compounds and cyanobiphenyls / L.N. Lisetski, A.N. Samoilov, S.S. Minenko, A.P. Fedoryako, T.V. Bidna // Functional Materials. — 2018. — Т. 25, № 4. — С. 681-683. — Бібліогр.: 10 назв. — англ.
series Functional Materials
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first_indexed 2023-05-20T17:51:40Z
last_indexed 2023-05-20T17:51:40Z
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