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

Research output: Contribution to journalArticle

24 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 languageEnglish
Pages (from-to)632-638
Number of pages7
JournalLiquid Crystals
Volume40
Issue number5
DOIs
Publication statusPublished - 2013 May 1

Fingerprint

Liquid Crystals
cobalt oxides
Nematic liquid crystals
Electrooptical effects
Liquid crystals
electro-optics
Cobalt
liquid crystals
Nanoparticles
nanoparticles
Oxides
Dielectric liquids
doped crystals
Threshold voltage
Hysteresis
Permittivity
Capacitance
Optical properties
Physical properties
cells

All Science Journal Classification (ASJC) codes

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

Cite this

Chung, Hyung Koo ; Park, Hong Gyu ; Ha, Yong Seok ; Han, Jeong Min ; Lee, Jin Woo ; Seo, Dae Shik. / Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion. In: Liquid Crystals. 2013 ; Vol. 40, No. 5. pp. 632-638.
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Superior electro-optic properties of liquid crystal system using cobalt oxide nanoparticle dispersion. / Chung, Hyung Koo; Park, Hong Gyu; Ha, Yong Seok; Han, Jeong Min; Lee, Jin Woo; Seo, Dae Shik.

In: Liquid Crystals, Vol. 40, No. 5, 01.05.2013, p. 632-638.

Research output: Contribution to journalArticle

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