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정준우

Jeong, Joonwoo
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dc.citation.endPage 2920 -
dc.citation.number 10 -
dc.citation.startPage 2914 -
dc.citation.title LANGMUIR -
dc.citation.volume 30 -
dc.contributor.author Jeong, Joonwoo -
dc.contributor.author Han, Ganghee -
dc.contributor.author Johnson, A. T. Charlie -
dc.contributor.author Collings, Peter J. -
dc.contributor.author Lubensky, Tom C. -
dc.contributor.author Yodh, Arjun G. -
dc.date.accessioned 2023-12-22T02:46:28Z -
dc.date.available 2023-12-22T02:46:28Z -
dc.date.created 2015-06-29 -
dc.date.issued 2014-03 -
dc.description.abstract We report on the homeotropic alignment of lyotropic chromonic liquid crystals (LCLCs). Homeotropic anchoring of LCLCs is difficult to achieve, and this challenge has limited development of applications for LCLCs. In this work, homeotropic alignment is achieved using noncovalent interactions between the LCLC molecules and various alignment layers including graphene, parylene films, poly(methyl methacrylate) films, and fluoropolymer films. The LCLC molecules are unique in that they self-assemble via noncovalent interactions in water into elongated aggregates which, in turn, form nematic and columnar liquid crystal (LC) phases. Here we exploit these same noncovalent interactions to induce homeotropic anchoring of the nematic LCLC. Homeotropic alignment is confirmed by polarized optical microscopy and conoscopy. We also report on novel transient stripe textures that occur when an initial flow-induced planar alignment transforms into the equilibrium homeotropic alignment required by boundary conditions. An understanding of this behavior could be important for switching applications. -
dc.identifier.bibliographicCitation LANGMUIR, v.30, no.10, pp.2914 - 2920 -
dc.identifier.doi 10.1021/la404893t -
dc.identifier.issn 0743-7463 -
dc.identifier.scopusid 2-s2.0-84899015158 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/11686 -
dc.identifier.url http://pubs.acs.org/doi/abs/10.1021/la404893t -
dc.identifier.wosid 000333235500038 -
dc.language 영어 -
dc.publisher AMER CHEMICAL SOC -
dc.title Homeotropic Alignment of Lyotropic Chromonic Liquid Crystals Using Noncovalent Interactions -
dc.type Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -

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