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Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device

A superior electro-optic (E-O) response has been achieved when multiferroic bismuth ferrite (BiFeO(3)/BFO) nanoparticles (NPs) were doped in nematic liquid crystal (NLC) host E7 and the LC device was addressed in the large signal regime by an amplitude modulated square wave signal at the frequency o...

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Detalles Bibliográficos
Autores principales: Nayek, Prasenjit, Li, Guoqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455113/
https://www.ncbi.nlm.nih.gov/pubmed/26041701
http://dx.doi.org/10.1038/srep10845
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author Nayek, Prasenjit
Li, Guoqiang
author_facet Nayek, Prasenjit
Li, Guoqiang
author_sort Nayek, Prasenjit
collection PubMed
description A superior electro-optic (E-O) response has been achieved when multiferroic bismuth ferrite (BiFeO(3)/BFO) nanoparticles (NPs) were doped in nematic liquid crystal (NLC) host E7 and the LC device was addressed in the large signal regime by an amplitude modulated square wave signal at the frequency of 100 Hz. The optimized concentration of BFO is 0.15 wt%, and the corresponding total optical response time (rise time + decay time) for a 5 μm-thick cell is 2.5 ms for ~7 V(rms). This might be exploited for the construction of adaptive lenses, modulators, displays, and other E-O devices. The possible reason behind the fast response time could be the visco-elastic constant and restoring force imparted by the locally ordered LCs induced by the multiferroic nanoparticles (MNPs). Polarized optical microscopic textural observation shows that the macroscopic dislocation-free excellent contrast have significant impact on improving the image quality and performance of the devices.
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spelling pubmed-44551132015-06-10 Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device Nayek, Prasenjit Li, Guoqiang Sci Rep Article A superior electro-optic (E-O) response has been achieved when multiferroic bismuth ferrite (BiFeO(3)/BFO) nanoparticles (NPs) were doped in nematic liquid crystal (NLC) host E7 and the LC device was addressed in the large signal regime by an amplitude modulated square wave signal at the frequency of 100 Hz. The optimized concentration of BFO is 0.15 wt%, and the corresponding total optical response time (rise time + decay time) for a 5 μm-thick cell is 2.5 ms for ~7 V(rms). This might be exploited for the construction of adaptive lenses, modulators, displays, and other E-O devices. The possible reason behind the fast response time could be the visco-elastic constant and restoring force imparted by the locally ordered LCs induced by the multiferroic nanoparticles (MNPs). Polarized optical microscopic textural observation shows that the macroscopic dislocation-free excellent contrast have significant impact on improving the image quality and performance of the devices. Nature Publishing Group 2015-06-04 /pmc/articles/PMC4455113/ /pubmed/26041701 http://dx.doi.org/10.1038/srep10845 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Nayek, Prasenjit
Li, Guoqiang
Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device
title Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device
title_full Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device
title_fullStr Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device
title_full_unstemmed Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device
title_short Superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device
title_sort superior electro-optic response in multiferroic bismuth ferrite nanoparticle doped nematic liquid crystal device
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4455113/
https://www.ncbi.nlm.nih.gov/pubmed/26041701
http://dx.doi.org/10.1038/srep10845
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