Ion-beam-processed SiO2 film for homogeneous liquid crystal alignment

Wei Yang Chou, Zong Yeh Ho, Fu Ching Tang, Yu Shen Mai, Ting Yuan Wu, Horng Long Cheng, Chia Rong Sheu, Chi Chang Liao, Kang Hung Liu

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Liquid crystals in our experiments could be aligned on a SiO2 surface bombarded by a neutral argon ion beam of an appropriate energy. Also, the pretilt angle of liquid crystals could be varied between 0 and 3.5°, by controlling the argon ion beam with an energy of 500 eV at an incident angle varying from 0 to 85° that was measured from the normal of the substrate. Finally, the twist nematic test cell of the 6 μm cell gap incorporating SiO2 alignment films exhibited a high optical transmission and a fast response time when the angle of the incident ion beam was more than 45°.

Original languageEnglish
Pages (from-to)L876-L878
JournalJapanese Journal of Applied Physics
Issue number24-27
Publication statusPublished - 2005 Jun 24

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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