Title
Regimes in the Response of Photomechanical Materials
Publication Date
2022
Abstract
Photomechanical materials perform mechanical work in response to illumination. Photoisomerization-based photomechanical materials may operate in different regimes depending on the intensity of the illuminating light. We examine the photoresponse of liquid crystalline azo-acrylate networks and show that a material property, the characteristic intensity of the material, defines the boundaries between different regimes. Asymptotic analysis indicates that whereas at low relative light levels, photostress is proportional to intensity, at high levels, it is proportional to fluence. Model predictions are in good agreement with the experimental results.
Journal or Book Title
Applied Sciences
Pages
7723
DOI
https://doi.org/10.3390/app12157723
Volume
12
Issue
15