Anastasiia Svanidze | Searcharxiv

arXiv2024

The effects of network architecture on the photomechanical performance of azo-acrylate liquid crystal elastomers

Azo-containing liquid crystal elatomers are photomechanical materials which can be actuated by illumination. The photomechanical response is a result of the photoisomerization of the azo moiety, which produces bulk stresses in the material. These stresses arise via two distinct and competing mechanisms: order parameter change induced stress and direct contractile stress. We describe thermomechanical and photomechanical experiments aimed at assessing the relative contributions of these. we discuss our results and summarize our findings.

cond-mat.soft↗

arXiv2021

Light induced stress and work in photomechanical materials

Increasingly important photomechanical materials produce stress and mechanical work when illuminated. We propose experimentally accessible performance metrics for photostress and photowork, enabling comparison of materials performance. We relate these metrics to material properties, providing a framework for the design and optimization of photomechanical materials.

cond-mat.mtrl-sci↗