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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2009, 4, 84—90.

Langmuir-Blodgett Heterostructures Based on Multimolecular Layers

Yu. A. Draginda, S. P. Palto, S. G. Yudin

Author affiliations
Shubnikov Institute of Crystallography of the RAS,
Leninskij pr. 59, 119333 Moscow, Russia.

Langmuir-Blodgett photonic hetero-structures were studied using experimental methods and computer modeling. Photonic properties were created by alternating deposition of multimolecular layers of PVDF/TRFe copolymer and azo-dye compound onto a glass substrate. According to computer modeling the photonic zone in a spectral range of 700-800 nm has been observed. The created photonic structures are characterized by unique functional properties of both copolymer and azo-dye multilayers. Individually these layers show ferroelectricity (PVDF/TRFe layers) and an effect of photo-induced optical anisotropy (the layers of azo-dye compound). The latter properties open new possibilities in controlling the photonic properties by external electric fields and polarized light radiation.

Keywords: Langmuir-Blodgett heterostructures, photonic crystals

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