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Title: Effect of ion beam irradiation and rubbing on the directional behavior and alignment mechanism of liquid crystals on polyimide surfaces

Abstract

We investigated the effects of ion beam (IB) irradiation and rubbing on the directional behavior and alignment mechanism of liquid crystals (LCs) on polyimide (PI) surfaces. We found that the LC direction follows the IB irradiation alignment direction on the PI surface regardless of whether the irradiation occurs before or after rubbing. We assumed that the LC direction depends strongly on the C-O bonds created from C=O bonds on the PI surface broken by IB irradiation and conducted an investigation of the chemical bonding state of the PI surface by x-ray photoelectron spectroscopy.

Authors:
; ; ;  [1]
  1. Department of Electrical and Electronic Engineering, Information Display Device Laboratory, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749 (Korea, Republic of)
Publication Date:
OSTI Identifier:
21185968
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 105; Journal Issue: 1; Other Information: DOI: 10.1063/1.3033380; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CHEMICAL BONDS; ION BEAMS; IRRADIATION; LIQUID CRYSTALS; POLYMERS; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Lee, Kang-Min, Oh, Byeong-Yun, Kim, Young-Hwan, and Seo, Dae-Shik. Effect of ion beam irradiation and rubbing on the directional behavior and alignment mechanism of liquid crystals on polyimide surfaces. United States: N. p., 2009. Web. doi:10.1063/1.3033380.
Lee, Kang-Min, Oh, Byeong-Yun, Kim, Young-Hwan, & Seo, Dae-Shik. Effect of ion beam irradiation and rubbing on the directional behavior and alignment mechanism of liquid crystals on polyimide surfaces. United States. https://doi.org/10.1063/1.3033380
Lee, Kang-Min, Oh, Byeong-Yun, Kim, Young-Hwan, and Seo, Dae-Shik. 2009. "Effect of ion beam irradiation and rubbing on the directional behavior and alignment mechanism of liquid crystals on polyimide surfaces". United States. https://doi.org/10.1063/1.3033380.
@article{osti_21185968,
title = {Effect of ion beam irradiation and rubbing on the directional behavior and alignment mechanism of liquid crystals on polyimide surfaces},
author = {Lee, Kang-Min and Oh, Byeong-Yun and Kim, Young-Hwan and Seo, Dae-Shik},
abstractNote = {We investigated the effects of ion beam (IB) irradiation and rubbing on the directional behavior and alignment mechanism of liquid crystals (LCs) on polyimide (PI) surfaces. We found that the LC direction follows the IB irradiation alignment direction on the PI surface regardless of whether the irradiation occurs before or after rubbing. We assumed that the LC direction depends strongly on the C-O bonds created from C=O bonds on the PI surface broken by IB irradiation and conducted an investigation of the chemical bonding state of the PI surface by x-ray photoelectron spectroscopy.},
doi = {10.1063/1.3033380},
url = {https://www.osti.gov/biblio/21185968}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 1,
volume = 105,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2009},
month = {Thu Jan 01 00:00:00 EST 2009}
}