Paper
26 September 2013 Multi-stimuli-responsive elastomeric opal films: processing, optics, and applications
Christian G. Schäfer, Markus Gallei, Götz P. Hellmann, Markus Biesalski, Matthias Rehahn
Author Affiliations +
Abstract
A new strategy to build large-scale solvent-responsive elastomeric opal films that are candidates for a wide range of optical sensor applications is reported. Hard-soft core-interlayer-shell (CIS) beads were used to prepare paper-supported elastomeric opal films with remarkably distinct iridescent reflection colors. Extrusion and compression molding of the CIS beads directly on the top of a highly porous paper sheet followed by UV cross-linking led to polymer-paper composite films with a high tensile strength and an outstanding solvent resistivity. Due to the high porosity of the paper sheets used, these composites could be easily swollen by various solvents. The swelling changed the crystalline lattice of the opals which provoked a tremendous photonic band gap shift and also enhanced the brilliance of these colors. After deswelling, the original opal structure was totally restored which means that the shift of the photonic band gap was completely reversible. This approach can become the basis for a whole family of polymer-based soft sensors with a fascinating optical response.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Christian G. Schäfer, Markus Gallei, Götz P. Hellmann, Markus Biesalski, and Matthias Rehahn "Multi-stimuli-responsive elastomeric opal films: processing, optics, and applications", Proc. SPIE 8816, Nanoengineering: Fabrication, Properties, Optics, and Devices X, 88160V (26 September 2013); https://doi.org/10.1117/12.2023876
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Cited by 3 scholarly publications.
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KEYWORDS
Polymers

Reflection

Polymer thin films

Transmission electron microscopy

Composites

Neodymium

Copper indium disulfide

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