A chemically modulated polystyrene surface for homogeneously aligned liquid crystals using various ion beam exposure angles

Jeong Hwan Kim; Hong Gyu Park; Young Gu Gang; Ji Hun Lim; Jeong Yeon Hwang; Chul Ho Ok; Dae Shik Seo; Jeong Min Han; Sung Ho Kim; Tae Kyu Park

doi:10.1080/02678292.2010.489158

A chemically modulated polystyrene surface for homogeneously aligned liquid crystals using various ion beam exposure angles

Jeong Hwan Kim, Hong Gyu Park, Young Gu Gang, Ji Hun Lim, Jeong Yeon Hwang, Chul Ho Ok, Dae Shik Seo, Jeong Min Han, Sung Ho Kim, Tae Kyu Park

Department of Electrical and Electronic Engineering

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

6 Citations (Scopus)

Abstract

In this study, transparent polystyrene (PS) was replaced with conventional polyimide material. As a non-contact process, an ion beam (IB) bombardment process was applied to align the homogeneous liquid crystal (LC) material on the PS surfaces. Confirming the atomic force microscopy and X-ray photoelectron spectroscopy analysis, the chemical compositional changes of the IB-irradiated PS surfaces were determined as a function of the IB exposure angle although there was no effect of modulation of the physical geographic characteristics on IB-irradiated PS surfaces. Using this analysis, the optimal IB bombardment condition was determined at the IB exposure angle of 45°. Finally, the electro-optical properties of an LC cell suggest the use of PS in conventional LC alignment materials.

Original language	English
Pages (from-to)	1133-1138
Number of pages	6
Journal	Liquid Crystals
Volume	37
Issue number	9
DOIs	https://doi.org/10.1080/02678292.2010.489158
Publication status	Published - 2010

All Science Journal Classification (ASJC) codes

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

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10.1080/02678292.2010.489158

Cite this

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title = "A chemically modulated polystyrene surface for homogeneously aligned liquid crystals using various ion beam exposure angles",

abstract = "In this study, transparent polystyrene (PS) was replaced with conventional polyimide material. As a non-contact process, an ion beam (IB) bombardment process was applied to align the homogeneous liquid crystal (LC) material on the PS surfaces. Confirming the atomic force microscopy and X-ray photoelectron spectroscopy analysis, the chemical compositional changes of the IB-irradiated PS surfaces were determined as a function of the IB exposure angle although there was no effect of modulation of the physical geographic characteristics on IB-irradiated PS surfaces. Using this analysis, the optimal IB bombardment condition was determined at the IB exposure angle of 45°. Finally, the electro-optical properties of an LC cell suggest the use of PS in conventional LC alignment materials.",

author = "Kim, {Jeong Hwan} and Park, {Hong Gyu} and Gang, {Young Gu} and Lim, {Ji Hun} and Hwang, {Jeong Yeon} and Ok, {Chul Ho} and Seo, {Dae Shik} and Han, {Jeong Min} and Kim, {Sung Ho} and Park, {Tae Kyu}",

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AU - Kim, Jeong Hwan

AU - Park, Hong Gyu

AU - Gang, Young Gu

AU - Lim, Ji Hun

AU - Hwang, Jeong Yeon

AU - Ok, Chul Ho

AU - Seo, Dae Shik

AU - Han, Jeong Min

AU - Kim, Sung Ho

AU - Park, Tae Kyu

PY - 2010

Y1 - 2010

N2 - In this study, transparent polystyrene (PS) was replaced with conventional polyimide material. As a non-contact process, an ion beam (IB) bombardment process was applied to align the homogeneous liquid crystal (LC) material on the PS surfaces. Confirming the atomic force microscopy and X-ray photoelectron spectroscopy analysis, the chemical compositional changes of the IB-irradiated PS surfaces were determined as a function of the IB exposure angle although there was no effect of modulation of the physical geographic characteristics on IB-irradiated PS surfaces. Using this analysis, the optimal IB bombardment condition was determined at the IB exposure angle of 45°. Finally, the electro-optical properties of an LC cell suggest the use of PS in conventional LC alignment materials.

AB - In this study, transparent polystyrene (PS) was replaced with conventional polyimide material. As a non-contact process, an ion beam (IB) bombardment process was applied to align the homogeneous liquid crystal (LC) material on the PS surfaces. Confirming the atomic force microscopy and X-ray photoelectron spectroscopy analysis, the chemical compositional changes of the IB-irradiated PS surfaces were determined as a function of the IB exposure angle although there was no effect of modulation of the physical geographic characteristics on IB-irradiated PS surfaces. Using this analysis, the optimal IB bombardment condition was determined at the IB exposure angle of 45°. Finally, the electro-optical properties of an LC cell suggest the use of PS in conventional LC alignment materials.

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JO - Liquid Crystals

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A chemically modulated polystyrene surface for homogeneously aligned liquid crystals using various ion beam exposure angles

Abstract

All Science Journal Classification (ASJC) codes

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