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

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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 languageEnglish
Pages (from-to)1133-1138
Number of pages6
JournalLiquid Crystals
Volume37
Issue number9
DOIs
Publication statusPublished - 2010 Sep 17

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All Science Journal Classification (ASJC) codes

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

Cite this

Kim, J. H., Park, H. G., Gang, Y. G., Lim, J. H., Hwang, J. Y., Ok, C. H., Seo, D-S., Han, J. M., Kim, S. H., & Park, T. K. (2010). A chemically modulated polystyrene surface for homogeneously aligned liquid crystals using various ion beam exposure angles. Liquid Crystals, 37(9), 1133-1138. https://doi.org/10.1080/02678292.2010.489158