Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion

Hyung Koo Chung; Hong Gyu Park; Yong Seok Ha; Jeong Min Han; Jin Woo Lee; Dae Shik Seo

doi:10.1080/02678292.2013.773092

Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion

Hyung Koo Chung, Hong Gyu Park, Yong Seok Ha, Jeong Min Han, Jin Woo Lee, Dae Shik Seo

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

In this article, we study the electro-optical (EO) properties of the homogeneous aligned nematic liquid crystal (N-LC) doped with cobalt oxide (Co₃O₄) nanoparticles (NPs). The EO characteristics of Co₃O₄ doped N-LC are higher performance, indicating lower threshold voltage (1.33 V), faster rising time (1.479 ms), and faster falling time (9.343 ms) than pure liquid crystal (LC) cells. We have demonstrated these results by investigating the relationship between dielectric constants and LC device properties. Furthermore, we proved NPs doped N-LC cells drive low power operation without capacitance hysteresis. Our experimental results were verified by software simulation based on general physical properties.

Original language	English
Pages (from-to)	632-638
Number of pages	7
Journal	Liquid Crystals
Volume	40
Issue number	5
DOIs	https://doi.org/10.1080/02678292.2013.773092
Publication status	Published - 2013 May

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1080/02678292.2013.773092

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title = "Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion",

abstract = "In this article, we study the electro-optical (EO) properties of the homogeneous aligned nematic liquid crystal (N-LC) doped with cobalt oxide (Co3O4) nanoparticles (NPs). The EO characteristics of Co3O4 doped N-LC are higher performance, indicating lower threshold voltage (1.33 V), faster rising time (1.479 ms), and faster falling time (9.343 ms) than pure liquid crystal (LC) cells. We have demonstrated these results by investigating the relationship between dielectric constants and LC device properties. Furthermore, we proved NPs doped N-LC cells drive low power operation without capacitance hysteresis. Our experimental results were verified by software simulation based on general physical properties.",

author = "Chung, {Hyung Koo} and Park, {Hong Gyu} and Ha, {Yong Seok} and Han, {Jeong Min} and Lee, {Jin Woo} and Seo, {Dae Shik}",

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T1 - Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion

AU - Chung, Hyung Koo

AU - Park, Hong Gyu

AU - Ha, Yong Seok

AU - Han, Jeong Min

AU - Lee, Jin Woo

AU - Seo, Dae Shik

PY - 2013/5

Y1 - 2013/5

N2 - In this article, we study the electro-optical (EO) properties of the homogeneous aligned nematic liquid crystal (N-LC) doped with cobalt oxide (Co3O4) nanoparticles (NPs). The EO characteristics of Co3O4 doped N-LC are higher performance, indicating lower threshold voltage (1.33 V), faster rising time (1.479 ms), and faster falling time (9.343 ms) than pure liquid crystal (LC) cells. We have demonstrated these results by investigating the relationship between dielectric constants and LC device properties. Furthermore, we proved NPs doped N-LC cells drive low power operation without capacitance hysteresis. Our experimental results were verified by software simulation based on general physical properties.

AB - In this article, we study the electro-optical (EO) properties of the homogeneous aligned nematic liquid crystal (N-LC) doped with cobalt oxide (Co3O4) nanoparticles (NPs). The EO characteristics of Co3O4 doped N-LC are higher performance, indicating lower threshold voltage (1.33 V), faster rising time (1.479 ms), and faster falling time (9.343 ms) than pure liquid crystal (LC) cells. We have demonstrated these results by investigating the relationship between dielectric constants and LC device properties. Furthermore, we proved NPs doped N-LC cells drive low power operation without capacitance hysteresis. Our experimental results were verified by software simulation based on general physical properties.

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Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion

Abstract

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