Reference : Self-assembled ordered structures in thin films of HAT5 discotic liquid crystal
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Self-assembled ordered structures in thin films of HAT5 discotic liquid crystal
Morales, Piero [> >]
Lagerwall, Jan mailto [Martin-Luther-Universität Halle-Wittenberg]
Vacca, Paolo [> >]
Laschat, Sabine [> >]
Scalia, Giusy [> >]
Beilstein Journal of Organic Chemistry
BioMed Central
Progress in Liquid Crystal Chemistry
Yes (verified by ORBilu)
[en] discotic liquid crystals ; Self-assembly ; nanowires
[en] Thin films of the discotic liquid crystal hexapentyloxytriphenylene (HAT5), prepared from solution via casting or spin-coating, were investigated by atomic force microscopy and polarizing optical microscopy, revealing large-scale ordered structures substan- tially different from those typically observed in standard samples of the same material. Thin and very long fibrils of planar-aligned liquid crystal were found, possibly formed as a result of an intermediate lyotropic nematic state arising during the solvent evapor- ation process. Moreover, in sufficiently thin films the crystallization seems to be suppressed, extending the uniform order of the liquid crystal phase down to room temperature. This should be compared to the bulk situation, where the same material crystallizes into a polymorphic structure at 68 °C.
Researchers ; Professionals

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