Curvatures of smectic liquid crystals and their applications

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Curvature is an important concept for understanding layering structures in soft matters, ranging from complex macromolecular self-assembled structures to simple lipid bilayers. Among the various kinds of soft matters, smectic liquid crystal (LC) phases have been widely studied because of their periodic featured curvatures under various external forces. Generally, their curvatures are on the micron-scale due to the bulk elasticity of smectic LC materials. In this review, a combination of sublimation and recondensation of smectic LC materials generates a variety of curvatures at the nanometer scale, which cannot be achieved by self-assembly under thermal equilibrium conditions. In particular, we have focused on the change of curvatures in focal conic domains under non-equilibrium conditions, in which negative and zero Gaussian curvatures in the micron-scale transform to positive Gaussian curvatures in the micron- and nanometer scales. Finally, the review closes with applications using such non-equilibrium self-assembly of smectics.
Publisher
한국정보디스플레이학회
Issue Date
2018-01
Language
English
Article Type
Article
Citation

JOURNAL OF INFORMATION DISPLAY, v.19, no.1, pp.7 - 23

ISSN
1598-0316
DOI
10.1080/15980316.2017.1410500
URI
http://hdl.handle.net/10203/241466
Appears in Collection
NT-Journal Papers(저널논문)
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