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Proceedings Paper

Optically responsive liquid crystal microfibers for display and nondisplay applications
Author(s): Ebru A. Buyuktanir; John L. West; Margaret W. Frey
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Paper Abstract

We demonstrate the fabrication and characterization of optically-tunable and stimuli-responsive electrospun microfibers endowed with liquid crystal (LC) functionality. The highly flexible LC microfibers are electrospun from a solution of 4- pentyl-4'-cyanobiphenyl (5CB) and polylactic acid (PLA) in chloroform/acetone solvent. In the electrospinning process, the low molecular weight 5CB phase-separates and self-assembles to form a planarly aligned nematic core within a PLA shell. Most importantly, the orientation of LC domains and, therefore, the optical properties of the 5CB/PLA fibers can be tuned by application of an external electric field. These properties of LC fibers may, in turn, be utilized to fabricate a variety of photonic textiles, and ultimately may introduce an entirely new manufacturing process where weaving will reach well beyond the roll-to-roll manufacturing envisioned for the currently emerging flexible displays printed on flexible plastic substrates.

Paper Details

Date Published: 2 February 2011
PDF: 7 pages
Proc. SPIE 7955, Emerging Liquid Crystal Technologies VI, 79550P (2 February 2011); doi: 10.1117/12.880076
Show Author Affiliations
Ebru A. Buyuktanir, Kent State Univ. (United States)
Stark State College (United States)
John L. West, Kent State Univ. (United States)
Margaret W. Frey, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 7955:
Emerging Liquid Crystal Technologies VI
Liang-Chy Chien; Hiroshi Yokoyama, Editor(s)

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