Liquid crystal alignment on polyurethane layer treated by ion beam irradiation with low power intensity

Hae Chang Jeong; Eun Mi Kim; Gi Seok Heo; Ju Hwan Lee; Dong Hyun Kim; Dong Wook Lee; Jeong Min Han; Tae Wan Kim; Dae Shik Seo

doi:10.1149/2.0051806jss

Liquid crystal alignment on polyurethane layer treated by ion beam irradiation with low power intensity

Hae Chang Jeong, Eun Mi Kim, Gi Seok Heo, Ju Hwan Lee, Dong Hyun Kim, Dong Wook Lee, Jeong Min Han, Tae Wan Kim, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

1 Citation (Scopus)

Abstract

The characteristics of ion beam (IB)-irradiated polyurethane (PU) alignment layer fabricated for use as liquid crystal (LC) alignment layer were investigated. Even at a low IB intensity of 600 eV, uniform LC alignment was achieved. The LC alignment on the IB-irradiated PU surface was attributed to surface polarities compared to C-C bonds in the PU substrate; hence, the van der Waals interactions between LC molecules and the PU surface were increased, thereby maintaining a good balance for homogeneous alignment. The LC cells based on PU irradiated with low intensity IB show potential for application as an alternative alignment layer in new LCD products.

Original language	English
Pages (from-to)	R70-R73
Journal	ECS Journal of Solid State Science and Technology
Volume	7
Issue number	6
DOIs	https://doi.org/10.1149/2.0051806jss
Publication status	Published - 2018 Jan

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials

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10.1149/2.0051806jss

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@article{781ad606086243008cba181e10137128,

title = "Liquid crystal alignment on polyurethane layer treated by ion beam irradiation with low power intensity",

abstract = "The characteristics of ion beam (IB)-irradiated polyurethane (PU) alignment layer fabricated for use as liquid crystal (LC) alignment layer were investigated. Even at a low IB intensity of 600 eV, uniform LC alignment was achieved. The LC alignment on the IB-irradiated PU surface was attributed to surface polarities compared to C-C bonds in the PU substrate; hence, the van der Waals interactions between LC molecules and the PU surface were increased, thereby maintaining a good balance for homogeneous alignment. The LC cells based on PU irradiated with low intensity IB show potential for application as an alternative alignment layer in new LCD products.",

author = "Jeong, {Hae Chang} and Kim, {Eun Mi} and Heo, {Gi Seok} and Lee, {Ju Hwan} and Kim, {Dong Hyun} and Lee, {Dong Wook} and Han, {Jeong Min} and Kim, {Tae Wan} and Seo, {Dae Shik}",

year = "2018",

month = jan,

doi = "10.1149/2.0051806jss",

language = "English",

volume = "7",

pages = "R70--R73",

journal = "ECS Journal of Solid State Science and Technology",

issn = "2162-8769",

publisher = "Electrochemical Society, Inc.",

number = "6",

}

Liquid crystal alignment on polyurethane layer treated by ion beam irradiation with low power intensity. / Jeong, Hae Chang; Kim, Eun Mi; Heo, Gi Seok; Lee, Ju Hwan; Kim, Dong Hyun; Lee, Dong Wook; Han, Jeong Min; Kim, Tae Wan; Seo, Dae Shik.

In: ECS Journal of Solid State Science and Technology, Vol. 7, No. 6, 01.2018, p. R70-R73.

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

TY - JOUR

T1 - Liquid crystal alignment on polyurethane layer treated by ion beam irradiation with low power intensity

AU - Jeong, Hae Chang

AU - Kim, Eun Mi

AU - Heo, Gi Seok

AU - Lee, Ju Hwan

AU - Kim, Dong Hyun

AU - Lee, Dong Wook

AU - Han, Jeong Min

AU - Kim, Tae Wan

AU - Seo, Dae Shik

PY - 2018/1

Y1 - 2018/1

N2 - The characteristics of ion beam (IB)-irradiated polyurethane (PU) alignment layer fabricated for use as liquid crystal (LC) alignment layer were investigated. Even at a low IB intensity of 600 eV, uniform LC alignment was achieved. The LC alignment on the IB-irradiated PU surface was attributed to surface polarities compared to C-C bonds in the PU substrate; hence, the van der Waals interactions between LC molecules and the PU surface were increased, thereby maintaining a good balance for homogeneous alignment. The LC cells based on PU irradiated with low intensity IB show potential for application as an alternative alignment layer in new LCD products.

AB - The characteristics of ion beam (IB)-irradiated polyurethane (PU) alignment layer fabricated for use as liquid crystal (LC) alignment layer were investigated. Even at a low IB intensity of 600 eV, uniform LC alignment was achieved. The LC alignment on the IB-irradiated PU surface was attributed to surface polarities compared to C-C bonds in the PU substrate; hence, the van der Waals interactions between LC molecules and the PU surface were increased, thereby maintaining a good balance for homogeneous alignment. The LC cells based on PU irradiated with low intensity IB show potential for application as an alternative alignment layer in new LCD products.

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