Mr. Yudai Fuwa Profile

Yudai Fuwa

at Ritsumeikan Univ

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Proceedings Article | 29 September 2023 Presentation + Paper

Dynamic control of molecular alignment in liquid-crystal elastomers by external materials

Yuki Shikata, Yudai Fuwa, Mina Matsuda, Kyohei Hisano, Kohsuke Matsumoto, Osamu Tsutsumi

Proceedings Volume 12658, 1265802 (2023) https://doi.org/10.1117/12.2677230

KEYWORDS: Deformation, Liquid crystals, Reflection, Multilayers, Materials properties, Sensors, Control systems, Polydimethylsiloxane, Elasticity, Optical properties

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Liquid crystal (LC) elastomers exhibit remarkable mechano-optical properties, combining the elasticity of elastomers with the molecular orientation of LCs. These unique characteristics have spurred the advancement of next-generation applications, including wearable optical sensors, reconfigurable photonic materials, and solar energy harvesting. Nonetheless, achieving dynamic control over both mechanical deformation and molecular reorientation remains a challenge due to the viscoelastic nature of LC elastomers. In this study, we propose a straightforward approach to tune the recovery response of mechanical deformation and molecular orientation just by simply introducing external layers in elastomer films. Through this material design, we can achieve the desired mechano-optical properties in multilayered LC elastomers. By strategically modifying the external layers, we can tailor the viscoelasticity and enhance the recovery response of the LC elastomers. Our proposed concept provides a versatile platform for the development of high-performance and multifunctional stimulus-responsive materials. By optimizing the recovery response of both mechanical deformation and molecular orientation, we can unlock new possibilities in the field of mechano-optics, enabling the creation of advanced devices with improved functionality and performance.

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