Communication

Pillar-Assisted Epitaxial Assembly of Toric Focal Conic Domains of Smectic-A Liquid Crystals

  1. Apiradee Honglawan1,
  2. Daniel A. Beller2,
  3. Marcello Cavallaro1,
  4. Randall D. Kamien2,*,
  5. Kathleen J. Stebe1,
  6. Shu Yang1,3,*

Article first published online: 17 OCT 2011

DOI: 10.1002/adma.201103008

Issue

Advanced Materials

Advanced Materials

Volume 23, Issue 46, pages 5519–5523, December 8, 2011

Additional Information

How to Cite

Honglawan, A., Beller, D. A., Cavallaro, M., Kamien, R. D., Stebe, K. J. and Yang, S. (2011), Pillar-Assisted Epitaxial Assembly of Toric Focal Conic Domains of Smectic-A Liquid Crystals. Adv. Mater., 23: 5519–5523. doi: 10.1002/adma.201103008

Author Information

  1. 1

    Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Towne Building, 220 South 33rd Street, Philadelphia, PA 19104, USA

  2. 2

    Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104, USA

  3. 3

    Department of Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA 19104, USA

*Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104, USA

Publication History

  1. Issue published online: 2 DEC 2011
  2. Article first published online: 17 OCT 2011
  3. Manuscript Revised: 7 SEP 2011
  4. Manuscript Received: 5 AUG 2011

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

View Full Article with Supporting Information (HTML) Get PDF (5734K)

Keywords:

  • hierarchical structures;
  • pillar assisted assembly;
  • epitaxial assembly;
  • liquid crystals
Thumbnail image of graphical abstract

SU-8 pillar-assisted epitaxial assembly of toric focal conic domains (TFCDs) arrays of smectic-A liquid crystals is studied. The 3D nature of the pillar array is crucial to confine and direct the formation of TFCDs on the top of each pillar and between neighboring pillars, leading to highly ordered square and hexagonal array TFCDs. Excellent agreement between the experimentally obtained critical pillar diameter and elasticity calculation is found.

View Full Article with Supporting Information (HTML) Get PDF (5734K)