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Issue 44, 2015
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Creation of liquid-crystal periodic zigzags by surface treatment and thermal annealing

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Abstract

The orientation control of soft matter to create a large area single domain is one of the most exciting research topics in materials science. Recently, this effort has been extended to fabricate two- or three-dimensional structures for electro-optical applications. Here, we create periodic zigzag structures in liquid crystals (LCs) using a combination of surface treatment and thermal annealing. The LC molecules in the nematic (N) phase were initially guided by the alignment layer of rubbed polymers, which were quenched and subsequently annealed in the smectic A (SmA) phase to create periodic zigzag structures that represent modulated layer structures. Direct investigation of the zigzags was performed using microscopy and diffraction techniques, showing the alternately arranged focal conic domains (FCDs) formed. The resulting macroscopic periodic structures will be of interest in further studies of the physical properties of soft matters.

Graphical abstract: Creation of liquid-crystal periodic zigzags by surface treatment and thermal annealing

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Supplementary files

Article information


Submitted
10 Aug 2015
Accepted
03 Sep 2015
First published
03 Sep 2015

This article is Open Access

Soft Matter, 2015,11, 8584-8589
Article type
Paper

Creation of liquid-crystal periodic zigzags by surface treatment and thermal annealing

S. H. Ryu, M. Gim, Y. J. Cha, T. J. Shin, H. Ahn and D. K. Yoon, Soft Matter, 2015, 11, 8584
DOI: 10.1039/C5SM01989C

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    [Original citation] - Published by The Royal Society of Chemistry.

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