Confined self-assembly of toric focal conic domains (the effects of confined geometry on the feature size of toric focal conic domains)

Langmuir : the ACS Journal of Surfaces and Colloids
Yun Ho KimHee-Tae Jung

Abstract

A smectic liquid crystal (LC) containing a rigid biphenyl group and semifluorinated chains exhibits a high density of toric focal conic domains (TFCDs) arranged in an ordered array when confined within a microchannel. The formation of the TFCDs is strongly influenced by the width (W) and depth (h) of the confined microchannels, most importantly, by the channel depth. We studied a broad variety of microchannels, with varying width in the range of 3-200 mum and depth in the range of 2-10 mum. The radius of the TFCDs increases with increases in the width until the saturated radius is achieved, which is determined by the depth of the channel. We used the elastic-anchoring model of TFCD formation to explain the experimental observations. The model allows one to trace the dependence of the TFCD radius on the channel depth h, to explain why the TFCDs do not form in channels that are too shallow or too narrow.

References

Feb 15, 1990·Physical Review. a·J B FournierG Durand
Dec 2, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·C Blanc, M Kleman
Feb 28, 2002·Biomacromolecules·Virgil Percec, Tushar K Bera
Mar 30, 2002·Science·George M Whitesides, Bartosz Grzybowski
Feb 6, 2003·Angewandte Chemie·David S Wilson, Steffen Nock
Oct 7, 2004·Nature Materials·Joy Y ChengCaroline A Ross
Nov 5, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·F Caillier, P Oswald
Dec 2, 2004·Proceedings of the National Academy of Sciences of the United States of America·Myung Chul ChoiCyrus R Safinya
May 18, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Su Rim LeeHee-Tae Jung
Dec 28, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·V DesignolleCh Bahr
Sep 14, 2006·Nano Letters·Joy Y ChengCaroline A Ross
Nov 17, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Shahab Shojaei-Zadeh, Shelley L Anna
Feb 3, 2007·Nano Letters·Gaurav Arora, Stanley I Sandler
May 29, 2007·Journal of the American Chemical Society·Manuel A PalaciosPavel Anzenbacher
Jun 24, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Wei GuoChristian Bahr

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Citations

Oct 15, 2013·The Journal of Chemical Physics·V Kumaran
Nov 13, 2013·Proceedings of the National Academy of Sciences of the United States of America·Dong Ki YoonHee-Tae Jung
Dec 6, 2012·Proceedings of the National Academy of Sciences of the United States of America·Apiradee HonglawanShu Yang
Dec 8, 2015·Journal of Colloid and Interface Science·Francesco GaleottiChiara Botta
Aug 15, 2015·Soft Matter·Apiradee HonglawanShu Yang
Mar 26, 2014·Optics Express·Baeksik SonYong-Hee Lee
Mar 22, 2014·Soft Matter·Oleg D Lavrentovich
Apr 26, 2016·ACS Applied Materials & Interfaces·Dae Seok KimDong Ki Yoon
Feb 12, 2017·ACS Applied Materials & Interfaces·Dae Seok KimDong Ki Yoon
Feb 16, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Martin UrbanskiJan P F Lagerwall
Oct 12, 2019·Small·Dae Seok KimDong Ki Yoon
Feb 9, 2020·Journal of Biomedical Materials Research. Part a·Greta BabakhanovaOleg D Lavrentovich
Jul 14, 2017·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Piotr PopovAntal Jákli
Feb 12, 2017·Advanced Materials·Ling-Ling MaYan-Qing Lu
Aug 8, 2009·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Wei Guo, Christian Bahr
Jan 26, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Min Jeong ShinDong Ki Yoon

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