Phototropic liquid crystals comprising one component

Anna Sobolewska; Joanna Zawada; Stanislaw Bartkiewicz; Zbigniew Galewski

doi:10.1117/12.2024413

12 September 2013 Phototropic liquid crystals comprising one component

Anna Sobolewska, Joanna Zawada, Stanislaw Bartkiewicz, Zbigniew Galewski

Proceedings Volume 8828, Liquid Crystals XVII; 88280U (2013) https://doi.org/10.1117/12.2024413
Event: SPIE Organic Photonics + Electronics, 2013, San Diego, California, United States

Abstract

Phototropic liquid crystals (PtLC), in which the phase transition can be controlled by the light, are a new class of liquid crystal materials possessing number of potential applications, especially in photonic devices. So far a significant majority of PtLC materials has been realized by the doping a classical liquid crystal with a photochromic dye. Here we report PtLCs comprising a single compound. Liquid-crystalline and photochromic properties have been accomplished in alkylo-alkoxy derivatives of azobenzene. Such compounds show a rich polymorphism which can be controlled by the light. The phenomenon of the photochemical phase transition has been investigated by means of holographic grating recording.

Citation Download Citation

Anna Sobolewska, Joanna Zawada, Stanislaw Bartkiewicz, and Zbigniew Galewski "Phototropic liquid crystals comprising one component", Proc. SPIE 8828, Liquid Crystals XVII, 88280U (12 September 2013); https://doi.org/10.1117/12.2024413

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