The influence of surface structure on the discotic liquid crystalline alignment. an infrared spectroscopy study

The type of alignment achieved with discotic liquid crystals is important for a number of applications. It is found to depend decisively on the structure of the substrate. Infrared dichroism experiments are used to study the alignment of truxene and triphenylene cores (see Fig.) on amorphous silicon...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 1995-11, Vol.7 (11), p.919-922
Main Authors: Perora, Tunic S., Vij, Prof. Jagdish K.
Format: Article
Language:English
Subjects:
Amorphous silicon
Applied sciences
Derivatives
Differential scanning calorimetry
Electronics
Exact sciences and technology
Infrared spectroscopy
Liquid crystals
Materials
Phase transitions
Polycrystalline materials
Scattering
Substrates
Synthesis (chemical)
Thermal effects
Zinc compounds
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Summary:The type of alignment achieved with discotic liquid crystals is important for a number of applications. It is found to depend decisively on the structure of the substrate. Infrared dichroism experiments are used to study the alignment of truxene and triphenylene cores (see Fig.) on amorphous silicon and polycrystalline ZnSe substrates, revealing considerable differences and hinting at the opportunity to tune the alignment of the materials .
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.19950071111