1. Open Access Kent State
  2. Control of Nematic Director Orientation By Exposing Rubbed Polyimide Films To Linearly Polarized Ultraviolet Light
Author(s)
Abstract

The delicate interplay between the effects of mechanical rubbing and subsequent photo-induced chemical reactions on polyimide films has been studied for aligning liquid crystals. Exposure to linearly polarized ultraviolet (LPUV) light was found to profoundly alter the direction and the degree of molecular orientations obtained by rubbing. A simple model is presented to describe the observed changes in the director orientation. The results show that LPUV exposure can be very effectively used to control and fine-tune liquid crystal alignment.
Format
Article
Identifier(s)
10.1063/1.120277
Publication Date
1997-11-24
Publication Title
Applied Physics Letters
Volume
71
Issue
21
First Page
3162
Last Page
3164
Keywords
Subject
Community
Department of Physics
Comments

Copyright 1997 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 71, 3162 (1997) and may be found at http://dx.doi.org/10.1063/1.120277.
Permalink https://oaks.kent.edu/phypubs/5
Kim, J.-H., Shi, Y., Kumar, S., & Lee, S.-D. (1997). Control of Nematic Director Orientation By Exposing Rubbed Polyimide Films To Linearly Polarized Ultraviolet Light. Applied Physics Letters. https://doi.org/10.1063/1.120277
Kim, Jae-Hoon, Yushan Shi, Satyendra Kumar, and Sin-Doo Lee. 1997. “Control of Nematic Director Orientation By Exposing Rubbed Polyimide Films To Linearly Polarized Ultraviolet Light”. Applied Physics Letters. https://doi.org/10.1063/1.120277.
Kim, J.-H., Y. Shi, S. Kumar, and S.-D. Lee. Control of Nematic Director Orientation By Exposing Rubbed Polyimide Films To Linearly Polarized Ultraviolet Light. Applied Physics Letters, 24 Nov. 1997, doi:10.1063/1.120277.