Ferroelectric Nanoparticles in Liquid Crystals: The Role of Ionic Transport at Small Concentrations of the Nanoparticles
We reveal the visible influence of the ultra-small concentrations (1 wt.% or less) of the BaTiO3 nanoparticles (average size 24 nm) on the current-voltage characteristics and capacitance of the dielectric liquid crystal (LC) 5CB. The pure LC cell demonstrates higher current (and thus smaller resista...
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| creator | Gudenko, Juliya M Pylypchuk, Oleksandr S Vainberg, Victor V Gvozdovskyy, Igor A Ivanchenko, Serhii E Stetsenko, Denis O Morozovsky, Nicholas V Poroshin, Volodymir N Eliseev, Eugene A Morozovska, Anna N |
| description | We reveal the visible influence of the ultra-small concentrations (1 wt.% or
less) of the BaTiO3 nanoparticles (average size 24 nm) on the current-voltage
characteristics and capacitance of the dielectric liquid crystal (LC) 5CB. The
pure LC cell demonstrates higher current (and thus smaller resistance) than the
LC cells filled with a very small concentration (0.5-1) wt.% of BTO
nanoparticles. The same trend is observed for the charge-voltage
characteristics: the capacitance loop is the widest for the pure LC cell and
becomes noticeably thinner in the presence of (0.5-1) wt.% of BaTiO3
nanoparticles. This seems counterintuitive, because 1 wt.% of ferroelectric
nanoparticles very slightly modify the effective dielectric response and should
not influence on the director distribution and elastic properties of the LC. We
conclude that a possible physical reason of this observation is the influence
of the ionic-electronic screening charges, which cover the ferroelectric
nanoparticles and become polarized in the external field, on the ionic
transport in the LC. |
| doi_str_mv | 10.48550/arxiv.2411.14118 |
| format | Article |
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less) of the BaTiO3 nanoparticles (average size 24 nm) on the current-voltage
characteristics and capacitance of the dielectric liquid crystal (LC) 5CB. The
pure LC cell demonstrates higher current (and thus smaller resistance) than the
LC cells filled with a very small concentration (0.5-1) wt.% of BTO
nanoparticles. The same trend is observed for the charge-voltage
characteristics: the capacitance loop is the widest for the pure LC cell and
becomes noticeably thinner in the presence of (0.5-1) wt.% of BaTiO3
nanoparticles. This seems counterintuitive, because 1 wt.% of ferroelectric
nanoparticles very slightly modify the effective dielectric response and should
not influence on the director distribution and elastic properties of the LC. We
conclude that a possible physical reason of this observation is the influence
of the ionic-electronic screening charges, which cover the ferroelectric
nanoparticles and become polarized in the external field, on the ionic
transport in the LC.</description><identifier>DOI: 10.48550/arxiv.2411.14118</identifier><language>eng</language><subject>Physics - Materials Science ; Physics - Soft Condensed Matter</subject><creationdate>2024-11</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2411.14118$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2411.14118$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Gudenko, Juliya M</creatorcontrib><creatorcontrib>Pylypchuk, Oleksandr S</creatorcontrib><creatorcontrib>Vainberg, Victor V</creatorcontrib><creatorcontrib>Gvozdovskyy, Igor A</creatorcontrib><creatorcontrib>Ivanchenko, Serhii E</creatorcontrib><creatorcontrib>Stetsenko, Denis O</creatorcontrib><creatorcontrib>Morozovsky, Nicholas V</creatorcontrib><creatorcontrib>Poroshin, Volodymir N</creatorcontrib><creatorcontrib>Eliseev, Eugene A</creatorcontrib><creatorcontrib>Morozovska, Anna N</creatorcontrib><title>Ferroelectric Nanoparticles in Liquid Crystals: The Role of Ionic Transport at Small Concentrations of the Nanoparticles</title><description>We reveal the visible influence of the ultra-small concentrations (1 wt.% or
less) of the BaTiO3 nanoparticles (average size 24 nm) on the current-voltage
characteristics and capacitance of the dielectric liquid crystal (LC) 5CB. The
pure LC cell demonstrates higher current (and thus smaller resistance) than the
LC cells filled with a very small concentration (0.5-1) wt.% of BTO
nanoparticles. The same trend is observed for the charge-voltage
characteristics: the capacitance loop is the widest for the pure LC cell and
becomes noticeably thinner in the presence of (0.5-1) wt.% of BaTiO3
nanoparticles. This seems counterintuitive, because 1 wt.% of ferroelectric
nanoparticles very slightly modify the effective dielectric response and should
not influence on the director distribution and elastic properties of the LC. We
conclude that a possible physical reason of this observation is the influence
of the ionic-electronic screening charges, which cover the ferroelectric
nanoparticles and become polarized in the external field, on the ionic
transport in the LC.</description><subject>Physics - Materials Science</subject><subject>Physics - Soft Condensed Matter</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqFjrEKwjAURbM4iPoBTr4fsDbaQnEtFgVx0O7lEVMMpEl9idL-vWlxcXK5d7nnchhb8jhKsjSNN0idekfbhPOIh8imrCskkZVaCk9KwAWNbZG8Elo6UAbO6vlSd8ipdx6120P5kHC1WoKt4WRNYEpC41pLHtDDrUGtIbdGSOMJvbLGDVMfsJ_zOZvU4VAuvj1jq-JQ5sf16Fi1pBqkvhpcq9F193_xAczbS4M</recordid><startdate>20241121</startdate><enddate>20241121</enddate><creator>Gudenko, Juliya M</creator><creator>Pylypchuk, Oleksandr S</creator><creator>Vainberg, Victor V</creator><creator>Gvozdovskyy, Igor A</creator><creator>Ivanchenko, Serhii E</creator><creator>Stetsenko, Denis O</creator><creator>Morozovsky, Nicholas V</creator><creator>Poroshin, Volodymir N</creator><creator>Eliseev, Eugene A</creator><creator>Morozovska, Anna N</creator><scope>GOX</scope></search><sort><creationdate>20241121</creationdate><title>Ferroelectric Nanoparticles in Liquid Crystals: The Role of Ionic Transport at Small Concentrations of the Nanoparticles</title><author>Gudenko, Juliya M ; Pylypchuk, Oleksandr S ; Vainberg, Victor V ; Gvozdovskyy, Igor A ; Ivanchenko, Serhii E ; Stetsenko, Denis O ; Morozovsky, Nicholas V ; Poroshin, Volodymir N ; Eliseev, Eugene A ; Morozovska, Anna N</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_2411_141183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Physics - Materials Science</topic><topic>Physics - Soft Condensed Matter</topic><toplevel>online_resources</toplevel><creatorcontrib>Gudenko, Juliya M</creatorcontrib><creatorcontrib>Pylypchuk, Oleksandr S</creatorcontrib><creatorcontrib>Vainberg, Victor V</creatorcontrib><creatorcontrib>Gvozdovskyy, Igor A</creatorcontrib><creatorcontrib>Ivanchenko, Serhii E</creatorcontrib><creatorcontrib>Stetsenko, Denis O</creatorcontrib><creatorcontrib>Morozovsky, Nicholas V</creatorcontrib><creatorcontrib>Poroshin, Volodymir N</creatorcontrib><creatorcontrib>Eliseev, Eugene A</creatorcontrib><creatorcontrib>Morozovska, Anna N</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Gudenko, Juliya M</au><au>Pylypchuk, Oleksandr S</au><au>Vainberg, Victor V</au><au>Gvozdovskyy, Igor A</au><au>Ivanchenko, Serhii E</au><au>Stetsenko, Denis O</au><au>Morozovsky, Nicholas V</au><au>Poroshin, Volodymir N</au><au>Eliseev, Eugene A</au><au>Morozovska, Anna N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ferroelectric Nanoparticles in Liquid Crystals: The Role of Ionic Transport at Small Concentrations of the Nanoparticles</atitle><date>2024-11-21</date><risdate>2024</risdate><abstract>We reveal the visible influence of the ultra-small concentrations (1 wt.% or
less) of the BaTiO3 nanoparticles (average size 24 nm) on the current-voltage
characteristics and capacitance of the dielectric liquid crystal (LC) 5CB. The
pure LC cell demonstrates higher current (and thus smaller resistance) than the
LC cells filled with a very small concentration (0.5-1) wt.% of BTO
nanoparticles. The same trend is observed for the charge-voltage
characteristics: the capacitance loop is the widest for the pure LC cell and
becomes noticeably thinner in the presence of (0.5-1) wt.% of BaTiO3
nanoparticles. This seems counterintuitive, because 1 wt.% of ferroelectric
nanoparticles very slightly modify the effective dielectric response and should
not influence on the director distribution and elastic properties of the LC. We
conclude that a possible physical reason of this observation is the influence
of the ionic-electronic screening charges, which cover the ferroelectric
nanoparticles and become polarized in the external field, on the ionic
transport in the LC.</abstract><doi>10.48550/arxiv.2411.14118</doi><oa>free_for_read</oa></addata></record> |
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| title | Ferroelectric Nanoparticles in Liquid Crystals: The Role of Ionic Transport at Small Concentrations of the Nanoparticles |
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