1. Open Access Kent State
  2. Homeotropically Aligning Phase Separated Columnar Structures For Fabrication Of Flexible Electrooptical Devices
Author(s)
Abstract

A method of achieving homeotropic alignment of liquid crystals(LCs) by ultraviolet light induced phase separation of LC from its mixture with photo-curable pre-polymer is reported. Vertical polymer columns and micro-fibrils developed during the phase separation promote homeotropic alignment of the LC director (i.e., alignment perpendicular to the LC-substrate interface), suitable for devices based on LCs possessing negative dielectricanisotropy. These vertical structures extend between two substrates and permit the fabrication of highly flexible electro-optical devices with high contrast coupled with fast response times. This simple single-step technique eliminates the need for the traditional polymer alignment layer pre-deposited on substrates.
Format
Article
Identifier(s)
10.1063/1.3663966
Publication Date
2011-11-30
Publication Title
Applied Physics Letters
Volume
88
First Page
221108-1
Last Page
221108-3
Keywords
Subject
Community
Department of Physics
Comments

Copyright 2013 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 Applied Physics Letters and may be found at http://scitation.aip.org/content/aip/journal/apl/99/22/10.1063/1.3663966
Permalink https://oaks.kent.edu/phypubs/135
Acharya, B., Choi, H., Srinivasarao, M., & Kumar, S. (2011). Homeotropically Aligning Phase Separated Columnar Structures For Fabrication Of Flexible Electrooptical Devices. Applied Physics Letters. https://doi.org/10.1063/1.3663966
Acharya, Bharat, Hyunchul Choi, Mohan Srinivasarao, and Satyendra Kumar. 2011. “Homeotropically Aligning Phase Separated Columnar Structures For Fabrication Of Flexible Electrooptical Devices”. Applied Physics Letters. https://doi.org/10.1063/1.3663966.
Acharya, B., H. Choi, M. Srinivasarao, and S. Kumar. Homeotropically Aligning Phase Separated Columnar Structures For Fabrication Of Flexible Electrooptical Devices. Applied Physics Letters, 30 Nov. 2011, doi:10.1063/1.3663966.