Low-power operation of vertically aligned liquid-crystal system via anatase-TiO2 nanoparticle dispersion

Won Kyu Lee; Ji Hyuk Choi; Hyun Jae Na; Ji Hun Lim; Jeong Min Han; Jeong Yeon Hwang; Dae Shik Seo

doi:10.1364/OL.34.003653

Low-power operation of vertically aligned liquid-crystal system via anatase-TiO₂ nanoparticle dispersion

Won Kyu Lee, Ji Hyuk Choi, Hyun Jae Na, Ji Hun Lim, Jeong Min Han, Jeong Yeon Hwang, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

46 Citations (Scopus)

Abstract

Electro-optic performance of a liquid-crystal (LC) system is enhanced by TiO2 nanoparticle dispersed in nematic liquid crystal (NLC). The 2.5 V threshold voltage of LC for device operation is lowered to 0.5 V through TiO2 nanoparticle mixing up to 2 wt.%. To characterize the shape and size distribution of the nanoparticles, high-resolution transmission electron microscopy is employed. Transmittance spectra for the TiO2 dispersed LC structure and nondispersed LC structure showed that transparency of the TiO2 dispersed LC is similar to that of pure liquid LC.

Original language	English
Pages (from-to)	3653-3655
Number of pages	3
Journal	Optics Letters
Volume	34
Issue number	23
DOIs	https://doi.org/10.1364/OL.34.003653
Publication status	Published - 2009 Dec 1

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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title = "Low-power operation of vertically aligned liquid-crystal system via anatase-TiO2 nanoparticle dispersion",

abstract = "Electro-optic performance of a liquid-crystal (LC) system is enhanced by TiO2 nanoparticle dispersed in nematic liquid crystal (NLC). The 2.5 V threshold voltage of LC for device operation is lowered to 0.5 V through TiO2 nanoparticle mixing up to 2 wt.%. To characterize the shape and size distribution of the nanoparticles, high-resolution transmission electron microscopy is employed. Transmittance spectra for the TiO2 dispersed LC structure and nondispersed LC structure showed that transparency of the TiO2 dispersed LC is similar to that of pure liquid LC.",

author = "Lee, {Won Kyu} and Choi, {Ji Hyuk} and Na, {Hyun Jae} and Lim, {Ji Hun} and Han, {Jeong Min} and Hwang, {Jeong Yeon} and Seo, {Dae Shik}",

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AU - Lee, Won Kyu

AU - Choi, Ji Hyuk

AU - Na, Hyun Jae

AU - Lim, Ji Hun

AU - Han, Jeong Min

AU - Hwang, Jeong Yeon

AU - Seo, Dae Shik

PY - 2009/12/1

Y1 - 2009/12/1

N2 - Electro-optic performance of a liquid-crystal (LC) system is enhanced by TiO2 nanoparticle dispersed in nematic liquid crystal (NLC). The 2.5 V threshold voltage of LC for device operation is lowered to 0.5 V through TiO2 nanoparticle mixing up to 2 wt.%. To characterize the shape and size distribution of the nanoparticles, high-resolution transmission electron microscopy is employed. Transmittance spectra for the TiO2 dispersed LC structure and nondispersed LC structure showed that transparency of the TiO2 dispersed LC is similar to that of pure liquid LC.

AB - Electro-optic performance of a liquid-crystal (LC) system is enhanced by TiO2 nanoparticle dispersed in nematic liquid crystal (NLC). The 2.5 V threshold voltage of LC for device operation is lowered to 0.5 V through TiO2 nanoparticle mixing up to 2 wt.%. To characterize the shape and size distribution of the nanoparticles, high-resolution transmission electron microscopy is employed. Transmittance spectra for the TiO2 dispersed LC structure and nondispersed LC structure showed that transparency of the TiO2 dispersed LC is similar to that of pure liquid LC.

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