Physico-chemical confinement of helical nanofilaments

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Helical nanofilaments (HNFs) have attracted much interest because of their unique optical properties, but there have been many hurdles to overcome in using them for the practical applications due to their structural complexity. Here we demonstrate that the molecular configuration and layer conformation of a modulated HNF (HNFs((mod))) can be studied using a physicochemical confinement system. The layer directions affected by the chemical affinity between the mesogen and surface were drastically controlled in surface-modified nanochannels. Furthermore, an in situ experiment using grazing-incidence X-ray diffraction (GIXD) was carried out to investigate in detail the structural evolution through thermal transitions. The results demonstrate that the HNF(mod) structure can be perfectly controlled for functional HNF device applications, and a combined system with chemical and physical confinement effects will be helpful to better understand the fundamentals of soft matter.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2015-03
Language
English
Article Type
Article
Keywords

LIQUID-CRYSTAL PHASES; SILICA NANOTUBES; ANODIC ALUMINA; SMECTIC PHASE; ORIENTATION; MOLECULES; ARRAYS

Citation

SOFT MATTER, v.11, no.18, pp.3653 - 3659

ISSN
1744-683X
DOI
10.1039/c5sm00417a
URI
http://hdl.handle.net/10203/198704
Appears in Collection
NT-Journal Papers(저널논문)
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