Homogeneously aligned liquid crystals on activated a-Al2O 3 surfaces with strong van der waals forces

Jong Jin Lee, Dai Hyun Kim, Young Hwan Kim, Hae Yoon Jung, Hong Gyu Park, Jin Woo Lee, Dae-Shik Seo

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

This report discusses homogeneously aligned liquid crystals (LCs) subjected to ion-beam (IB) irradiation of the amorphous(a)-Al2O3 alignment layer. We studied the relationship between LC alignment and IB alignment conditions acting on homogeneous surfaces. We attained homogeneous LC orientations on a-Al2O3 alignment layer by optimization between the van der Waals interactions caused by Al-O bonding breaking with x-ray photoelectron spectroscopy. The voltage-transmittance characteristics of the twisted nematic - liquid crystal displays (LCDs) on the a-Al 2O3 film indicate potential for use as the LC alignment layer in various LCD display applications.

Original languageEnglish
Pages (from-to)202-208
Number of pages7
JournalFerroelectrics
Volume431
Issue number1
DOIs
Publication statusPublished - 2012 Oct 30
Event13th International Conference on Ferroelectric Liquid Crystals - Niagara Falls, ON, Canada
Duration: 2012 Aug 282012 Sep 2

Fingerprint

Liquid Crystals
Van der Waals forces
Liquid crystals
liquid crystals
alignment
Liquid crystal displays
Ion beams
ion beams
Nematic liquid crystals
Photoelectron spectroscopy
Crystal orientation
x ray spectroscopy
Display devices
Irradiation
transmittance
X rays
photoelectron spectroscopy
Electric potential
optimization
irradiation

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Lee, Jong Jin ; Kim, Dai Hyun ; Kim, Young Hwan ; Jung, Hae Yoon ; Park, Hong Gyu ; Lee, Jin Woo ; Seo, Dae-Shik. / Homogeneously aligned liquid crystals on activated a-Al2O 3 surfaces with strong van der waals forces. In: Ferroelectrics. 2012 ; Vol. 431, No. 1. pp. 202-208.
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Homogeneously aligned liquid crystals on activated a-Al2O 3 surfaces with strong van der waals forces. / Lee, Jong Jin; Kim, Dai Hyun; Kim, Young Hwan; Jung, Hae Yoon; Park, Hong Gyu; Lee, Jin Woo; Seo, Dae-Shik.

In: Ferroelectrics, Vol. 431, No. 1, 30.10.2012, p. 202-208.

Research output: Contribution to journalConference article

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AU - Lee, Jong Jin

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AU - Lee, Jin Woo

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AB - This report discusses homogeneously aligned liquid crystals (LCs) subjected to ion-beam (IB) irradiation of the amorphous(a)-Al2O3 alignment layer. We studied the relationship between LC alignment and IB alignment conditions acting on homogeneous surfaces. We attained homogeneous LC orientations on a-Al2O3 alignment layer by optimization between the van der Waals interactions caused by Al-O bonding breaking with x-ray photoelectron spectroscopy. The voltage-transmittance characteristics of the twisted nematic - liquid crystal displays (LCDs) on the a-Al 2O3 film indicate potential for use as the LC alignment layer in various LCD display applications.

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