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Issue 26, 2013
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Alignment of helical nanofilaments on the surfaces of various self-assembled monolayers

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Abstract

We successfully prepared controlled layers of NOBOW molecules on a variety of self-assembled monolayers (SAMs) such that the layers formed oriented domain structures in which the complex chiral/polar crystalline helical nanofilaments (HNFs) were arranged to form a B4 bent-core liquid crystal (LC) phase. The alignment of the B2 phase, which formed at a higher temperature than the B4 phase, affected the direction of the HNFs. The HNFs formed on the B2 smectic layers and were aligned parallel or perpendicular, respectively, to the substrates with high or low surface energies (molecule-philic or -phobic SAM-treated substrates). The HNFs confined within rectangular microchannels modified by the SAMs were directly visualized by electron microscopy and X-ray diffraction studies. The orientations of the HNFs were found to be governed by the B2 smectic layer morphology.

Graphical abstract: Alignment of helical nanofilaments on the surfaces of various self-assembled monolayers

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Publication details

The article was received on 04 Mar 2013, accepted on 19 Apr 2013 and first published on 04 Jun 2013


Article type: Paper
DOI: 10.1039/C3SM50637A
Citation: Soft Matter, 2013,9, 6185-6191
  • Open access: Creative Commons BY-NC license
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    Alignment of helical nanofilaments on the surfaces of various self-assembled monolayers

    H. Kim, S. Lee, T. J. Shin, Y. J. Cha, E. Korblova, D. M. Walba, N. A. Clark, S. B. Lee and D. K. Yoon, Soft Matter, 2013, 9, 6185
    DOI: 10.1039/C3SM50637A

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