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Heliconical-layered nanocylinders (HLNCs) –hierarchical self-assembly in a unique B4 phase liquid crystal morphology.

Shadpour, Sasan and Nemati, Ahlam and Boyd, Nicola Jane and Li, Lin and Prevot, Marianne Estelle and Wakerlin, Samantha L. and Vanegas, Julie P. and Salamonczyk, Mirosław and Hegmann, Elda and Zhu, Chenhui and Wilson, Mark R. and Jakli, Antal I. and Hegmann, Torsten (2019) 'Heliconical-layered nanocylinders (HLNCs) –hierarchical self-assembly in a unique B4 phase liquid crystal morphology.', Materials horizons., 6 (5). 959--968.


A unique morphology for bent-core liquid crystals forming the B4 phase has been found for a class of tris-biphenyl bent-core liquid crystal molecules with a single chiral side chain in the longer para-side of the molecule. Unlike the parent molecules with two chiral side chains or a chiral side chain in the shorter meta-side, which form helical nano- or microfilament B4 phases, the two derivatives described here form heliconical-layered nanocylinders composed of up to 10 coaxial heliconical layers, which can split or merge, braid, and self-assemble into a variety of modes including feather- or herringbone-type structures, concentric rings, or hollow nest-like superstructures. These multi-level hierarchical self-assembled structures, rivaling muscle fibers, display blue structural color and show immense structural and morphological complexity.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Date accepted:13 February 2019
Date deposited:17 April 2019
Date of first online publication:13 February 2019
Date first made open access:13 February 2020

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