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 articlepeer-review

3 Citations (Scopus)


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
Issue number1
Publication statusPublished - 2012
Event13th International Conference on Ferroelectric Liquid Crystals - Niagara Falls, ON, Canada
Duration: 2012 Aug 282012 Sept 2

Bibliographical note

Funding Information:
This research was supported by MKE (The Ministry of Knowledge Economy), Korea, under the ITRC (Information Technology Research Center) support program supervised by the NIPA (National IT Industry Promotion Agency) (NIPA-2011-C1090-1111-0002).

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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