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Epitaxial Assembly: Pillar‐Assisted Epitaxial Assembly of Toric Focal Conic Domains of Smectic‐A Liquid Crystals (Adv. Mater. 46/2011)
Author(s) -
Honglawan Apiradee,
Beller Daniel A.,
Cavallaro Marcello,
Kamien Randall D.,
Stebe Kathleen J.,
Yang Shu
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201190189
Subject(s) - materials science , conic section , pillar , epitaxy , liquid crystal , hexagonal crystal system , square (algebra) , crystallography , condensed matter physics , optics , nanotechnology , geometry , optoelectronics , physics , layer (electronics) , mathematics , chemistry , structural engineering , engineering
Randall D. Kamien, Shu Yang, and co‐workers demonstrate an epitaxial approach to tailor the size and symmetry of toric focal conic domain (TFCD) arrays over large areas by exploiting 3D confinement and directed growth of Smectic‐A liquid crystals using SU‐8 pillar arrays with variable dimensions (size, height, and spacing) and sym‐metries. As reported on page 5519 , a new variety of TFCD arrays (e.g., square lattices) are obtained beyond the close‐packed hexagonal arrangement formed spontaneously on a flat surface.