From soft lenses to slim films: functional materials inscribed with waveguide architectures

Abstract

This thesis demonstrates the development and characterization of functional materials designed for light guiding and capturing applications. Exploiting the translatable nature of previously developed methods for the self-inscription of complex waveguide lattice architectures, different soft polymer materials are explored for their aptitude for various applications. For a soft material with a quick actuation response an electroactive hydrogel is explored to create dynamic lenses inscribed with waveguides that allow for adaptable light collection and guidance. Conversely, in favour of robustness an acrylate-epoxy blend is used to fabricate radially distributed waveguide lattice slim films that can be integrated with photovoltaics to increase efficiency through enhanced light collection. These films are able to collect light rays at oblique angles that would be otherwise wasted, which is particularly powerful for indoor applications where there is a significant diffuse and isotropic component to lighting.