Compositional investigation of liquid crystal alignment on tantalum oxide via ion beam irradiation

Jong Yeon Kim; Byeong Yun Oh; Byoung Yong Kim; Young Hwan Kim; Jin Woo Han; Jeong Min Han; Dae Shik Seo

doi:10.1063/1.2838312

Compositional investigation of liquid crystal alignment on tantalum oxide via ion beam irradiation

Jong Yeon Kim, Byeong Yun Oh, Byoung Yong Kim, Young Hwan Kim, Jin Woo Han, Jeong Min Han, Dae Shik Seo

Department of Electrical and Electronic Engineering

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

47 Citations (Scopus)

Abstract

The homogeneously aligned liquid crystal display on Ta2 O5 via ion beam (IB) irradiation was first embodied with controllability of pretilt angle depending on incident angle of the IB. As a result of x-ray photoelectron spectroscopic analysis, the intensity of Ta-O and O-Ta bondings as a function of incident angle behaved reversely with the pretilt angle and the lowest amplitude was observed at 45°. It revealed that the creation of pretilt angle was attributed to the irradiation of the IB by breaking Ta-O and O-Ta bonding so orientational order was generated by directional IB. Comparable electro-optical characteristics to rubbed polyimide were also achieved.

Original language	English
Article number	043505
Journal	Applied Physics Letters
Volume	92
Issue number	4
DOIs	https://doi.org/10.1063/1.2838312
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2838312

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title = "Compositional investigation of liquid crystal alignment on tantalum oxide via ion beam irradiation",

abstract = "The homogeneously aligned liquid crystal display on Ta2 O5 via ion beam (IB) irradiation was first embodied with controllability of pretilt angle depending on incident angle of the IB. As a result of x-ray photoelectron spectroscopic analysis, the intensity of Ta-O and O-Ta bondings as a function of incident angle behaved reversely with the pretilt angle and the lowest amplitude was observed at 45°. It revealed that the creation of pretilt angle was attributed to the irradiation of the IB by breaking Ta-O and O-Ta bonding so orientational order was generated by directional IB. Comparable electro-optical characteristics to rubbed polyimide were also achieved.",

author = "Kim, {Jong Yeon} and Oh, {Byeong Yun} and Kim, {Byoung Yong} and Kim, {Young Hwan} and Han, {Jin Woo} and Han, {Jeong Min} and Seo, {Dae Shik}",

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AU - Kim, Jong Yeon

AU - Oh, Byeong Yun

AU - Kim, Byoung Yong

AU - Kim, Young Hwan

AU - Han, Jin Woo

AU - Han, Jeong Min

AU - Seo, Dae Shik

PY - 2008

Y1 - 2008

N2 - The homogeneously aligned liquid crystal display on Ta2 O5 via ion beam (IB) irradiation was first embodied with controllability of pretilt angle depending on incident angle of the IB. As a result of x-ray photoelectron spectroscopic analysis, the intensity of Ta-O and O-Ta bondings as a function of incident angle behaved reversely with the pretilt angle and the lowest amplitude was observed at 45°. It revealed that the creation of pretilt angle was attributed to the irradiation of the IB by breaking Ta-O and O-Ta bonding so orientational order was generated by directional IB. Comparable electro-optical characteristics to rubbed polyimide were also achieved.

AB - The homogeneously aligned liquid crystal display on Ta2 O5 via ion beam (IB) irradiation was first embodied with controllability of pretilt angle depending on incident angle of the IB. As a result of x-ray photoelectron spectroscopic analysis, the intensity of Ta-O and O-Ta bondings as a function of incident angle behaved reversely with the pretilt angle and the lowest amplitude was observed at 45°. It revealed that the creation of pretilt angle was attributed to the irradiation of the IB by breaking Ta-O and O-Ta bonding so orientational order was generated by directional IB. Comparable electro-optical characteristics to rubbed polyimide were also achieved.

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Compositional investigation of liquid crystal alignment on tantalum oxide via ion beam irradiation

Abstract

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