Substrate-Induced Crystal Plastic Phase of a Discotic Liquid Crystal
| Autor: | Roberto Lazzaroni, Yves Geerts, Pascal Viville, Nicolas Dumont, Gabin Gbabode, Florence Quist, Armin Moser, Guillaume Schweicher |
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| Rok vydání: | 2011 |
| Předmět: |
Diffraction
Materials science Mechanical Engineering Discotic liquid crystal 02 engineering and technology Substrate (electronics) Microscopy Atomic Force 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Phase Transition Liquid Crystals 0104 chemical sciences Crystal Tetragonal crystal system Crystallography X-Ray Diffraction Mechanics of Materials Phase (matter) Scattering Small Angle General Materials Science Thin film 0210 nano-technology Columnar phase Plastics |
| Zdroj: | Advanced Materials. 24:658-662 |
| ISSN: | 0935-9648 |
| DOI: | 10.1002/adma.201103739 |
| Popis: | A new phase of a known discotic liquid crystal is observed at the interface with a rigid substrate. The structure of the substrate-induced phase has been characterized by atomic force microscopy, specular X-ray diffraction, and small-angle and wide-angle grazing incidence X-ray diffraction. The substrate-induced phase, which has a thickness of ∼30 nm and a tetragonal symmetry, differs notably from the bulk phase. The occurrence of such phase casts a new light on alignment of discotic liquid crystals. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| Databáze: | OpenAIRE |
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