Photo- and electro-controllable 2D diffraction gratings prepared using electrohydrodynamic instability in a nematic polymerizable mixture

Bobrovsky, Alexey; Shibaev, Valéry; Ostrovskiǐ, B. I.; Cigl, Martin; Hamplová, Věra; Bubnov, Alexej

doi:10.1039/d3tc01682j

J. Mater. Chem. C

2023

DOI: 10.1039/d3tc01682j

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Photo- and electro-controllable 2D diffraction gratings prepared using electrohydrodynamic instability in a nematic polymerizable mixture

Alexey Bobrovsky

Valéry Shibaev

B. I. Ostrovskiǐ

et al.

Abstract: Fast progress in modern information technologies requires the creation of new optical devices and diffractive elements that determines emergent activities in the related research fields. In the present work we...

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2024

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Cited by 4 publications

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Simultaneous Light‐Triggered Formation of Polymer Networks and Enhancement of Electrohydrodynamic Instabilities in Liquid Crystals for Versatile Energy‐Saving Smart Windows

Zhang,

Li,

Zhao

et al. 2024

Adv Funct Materials

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Smart windows have come to the fore in modern buildings and intelligent information equipment drawing upon their dynamic control over light transmission. Liquid crystals tactfully manipulate light transmission depending on their microcosmic molecular orientations, emerging as new favorite functional materials for smart windows. However, most liquid crystal window technologies require continuous electricity for operation in luminous transparency and still perform a trade‐off between film formation performance and dimming functions. As key components of building structures, windows shall be kept transparent for an extended period. For the convenience of large‐scale processing, polymer matrices are indispensable. Given that, reverse‐operation‐mode dimming films, which are transparent to achieve daylighting in their natural or no power‐input states and become opaque to block sunlight through electric input on demand, are highly desired. Here, by introducing a photolabile amine, the synchronous light‐induced formation of polymer networks and enhancement of electrohydrodynamic instabilities in mesogenic materials is successfully executed. Relying on this creative and effective approach, reverse‐operation‐mode polymer network liquid crystal films having simultaneous modulation capability of visible light and near‐infrared light from solar irradiation are skillfully fabricated, promising applications in versatile energy‐saving smart windows.

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Simultaneous Light‐Triggered Formation of Polymer Networks and Enhancement of Electrohydrodynamic Instabilities in Liquid Crystals for Versatile Energy‐Saving Smart Windows

Zhang,

Li,

Zhao

et al. 2024

Adv Funct Materials

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Dual tunability of selective reflection by light and electric field for self-organizing materials

Mrukiewicz,

Cigl,

Perkowski

et al. 2024

Journal of Molecular Liquids

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Chiral liquid crystal dimers with smectic phases for stabilization of anticlinic state in surface-stabilised geometry

Czerwiński,

Dmochowska,

Herman

et al. 2024

Journal of Molecular Liquids

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Photo- and electro-controllable 2D diffraction gratings prepared using electrohydrodynamic instability in a nematic polymerizable mixture

Abstract: Fast progress in modern information technologies requires the creation of new optical devices and diffractive elements that determines emergent activities in the related research fields. In the present work we...

Cited by 4 publications

References 49 publications

Simultaneous Light‐Triggered Formation of Polymer Networks and Enhancement of Electrohydrodynamic Instabilities in Liquid Crystals for Versatile Energy‐Saving Smart Windows

Simultaneous Light‐Triggered Formation of Polymer Networks and Enhancement of Electrohydrodynamic Instabilities in Liquid Crystals for Versatile Energy‐Saving Smart Windows

Dual tunability of selective reflection by light and electric field for self-organizing materials

Chiral liquid crystal dimers with smectic phases for stabilization of anticlinic state in surface-stabilised geometry

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