Marek Veveričík, Peter Bury, František Černobila, Natália Tomašovičová, Veronika Lacková, Dmytro Miakota, Katarína Kónyová, Milan Timko, Peter Kopčanský, Shie-Chang Jeng, Markéta Jarošová
{"title":"二氧化硅纳米颗粒对向列液晶结构和电光性能的影响","authors":"Marek Veveričík, Peter Bury, František Černobila, Natália Tomašovičová, Veronika Lacková, Dmytro Miakota, Katarína Kónyová, Milan Timko, Peter Kopčanský, Shie-Chang Jeng, Markéta Jarošová","doi":"10.1140/epjb/s10051-025-01051-9","DOIUrl":null,"url":null,"abstract":"<div><p>The nematic 5CB liquid crystal composites with silica nanoparticles were studied using light transmission and surface acoustic wave (SAW) measurements. Several different kinds of hydrophobic aerosil were chosen as a source of silica nanoparticles. The synthesized colloidal systems exhibited a pronounced memory effect, as indicated by the hysteresis observed in both light transmission and surface acoustic wave (SAW) attenuation measurements within the nematic phase at ambient temperature. However, apparent influence of SiO<sub>2</sub> surroundings following different aerosil sources for silica nanoparticles as dopants on the improvement of the memory effect was observed. Additional studies also showed on the influence of SiO<sub>2</sub> surroundings on the threshold voltage as well as nematic-isotropic transition temperature. The potential application of appropriate composites could lead to the fabrication of electro-optical memory devices suitable for information storage applications.</p><h3>Graphical abstract</h3><p>The nematic 5CB liquid crystal composites with silica nanoparticles were studied using light transmission and surface acoustic wave (SAW) measurements. Several different kinds of hydrophobic aerosil were chosen as a source of silica nanoparticles. The synthesized colloidal systems exhibited a pronounced memory effect, as indicated by the hysteresis observed in both light transmission and surface acoustic wave (SAW) attenuation measurements within the nematic phase at ambient temperature. However, apparent influence of SiO<sub>2</sub> surroundings following different aerosil sources for silica nanoparticles as dopants on the improvement of the memory effect was observed. Additional studies showed also on the influence of SiO<sub>2</sub> surroundings on the threshold voltage as well as nematic-isotropic transition temperature. The potential application of appropriate composites could lead to the fabrication of electro-optical memory devices suitable for information storage applications.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div><p>Summarization of light transmission dependences on electric field for all investigated 5CB composites doped with silica nanoparticles including pure 5CB (<b>a</b>) and schematic illustration of arrangement between silica nanoparticles and liquid crystal (<b>b</b>)</p></div>","PeriodicalId":787,"journal":{"name":"The European Physical Journal B","volume":"98 10","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjb/s10051-025-01051-9.pdf","citationCount":"0","resultStr":"{\"title\":\"Influence of silica nanoparticles on nematic liquid crystal structural and electro-optical properties\",\"authors\":\"Marek Veveričík, Peter Bury, František Černobila, Natália Tomašovičová, Veronika Lacková, Dmytro Miakota, Katarína Kónyová, Milan Timko, Peter Kopčanský, Shie-Chang Jeng, Markéta Jarošová\",\"doi\":\"10.1140/epjb/s10051-025-01051-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The nematic 5CB liquid crystal composites with silica nanoparticles were studied using light transmission and surface acoustic wave (SAW) measurements. Several different kinds of hydrophobic aerosil were chosen as a source of silica nanoparticles. The synthesized colloidal systems exhibited a pronounced memory effect, as indicated by the hysteresis observed in both light transmission and surface acoustic wave (SAW) attenuation measurements within the nematic phase at ambient temperature. However, apparent influence of SiO<sub>2</sub> surroundings following different aerosil sources for silica nanoparticles as dopants on the improvement of the memory effect was observed. Additional studies also showed on the influence of SiO<sub>2</sub> surroundings on the threshold voltage as well as nematic-isotropic transition temperature. The potential application of appropriate composites could lead to the fabrication of electro-optical memory devices suitable for information storage applications.</p><h3>Graphical abstract</h3><p>The nematic 5CB liquid crystal composites with silica nanoparticles were studied using light transmission and surface acoustic wave (SAW) measurements. Several different kinds of hydrophobic aerosil were chosen as a source of silica nanoparticles. The synthesized colloidal systems exhibited a pronounced memory effect, as indicated by the hysteresis observed in both light transmission and surface acoustic wave (SAW) attenuation measurements within the nematic phase at ambient temperature. However, apparent influence of SiO<sub>2</sub> surroundings following different aerosil sources for silica nanoparticles as dopants on the improvement of the memory effect was observed. Additional studies showed also on the influence of SiO<sub>2</sub> surroundings on the threshold voltage as well as nematic-isotropic transition temperature. 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Influence of silica nanoparticles on nematic liquid crystal structural and electro-optical properties
The nematic 5CB liquid crystal composites with silica nanoparticles were studied using light transmission and surface acoustic wave (SAW) measurements. Several different kinds of hydrophobic aerosil were chosen as a source of silica nanoparticles. The synthesized colloidal systems exhibited a pronounced memory effect, as indicated by the hysteresis observed in both light transmission and surface acoustic wave (SAW) attenuation measurements within the nematic phase at ambient temperature. However, apparent influence of SiO2 surroundings following different aerosil sources for silica nanoparticles as dopants on the improvement of the memory effect was observed. Additional studies also showed on the influence of SiO2 surroundings on the threshold voltage as well as nematic-isotropic transition temperature. The potential application of appropriate composites could lead to the fabrication of electro-optical memory devices suitable for information storage applications.
Graphical abstract
The nematic 5CB liquid crystal composites with silica nanoparticles were studied using light transmission and surface acoustic wave (SAW) measurements. Several different kinds of hydrophobic aerosil were chosen as a source of silica nanoparticles. The synthesized colloidal systems exhibited a pronounced memory effect, as indicated by the hysteresis observed in both light transmission and surface acoustic wave (SAW) attenuation measurements within the nematic phase at ambient temperature. However, apparent influence of SiO2 surroundings following different aerosil sources for silica nanoparticles as dopants on the improvement of the memory effect was observed. Additional studies showed also on the influence of SiO2 surroundings on the threshold voltage as well as nematic-isotropic transition temperature. The potential application of appropriate composites could lead to the fabrication of electro-optical memory devices suitable for information storage applications.
Summarization of light transmission dependences on electric field for all investigated 5CB composites doped with silica nanoparticles including pure 5CB (a) and schematic illustration of arrangement between silica nanoparticles and liquid crystal (b)
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