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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 22: Poster Session III - Charged Soft Matter and Theory and Simulation
CPP 22.15: Poster
Mittwoch, 24. März 2021, 16:30–18:30, CPPp
Wrinkled Functional Hybrid Multilayers Between Order and Disorder — •Lukas Wolfram1, Regine Frank1,2, and Thomas Fuhrmann-Lieker1 — 1Institute of Chemistry, University of Kassel, Germany — 2Department of Physics and Astronomy, Rutgers, the State University of New Jersey, USA
Multilayer systems of thin films give the opportunity to produce self-structured surfaces via thermal annealing. The corrugations build, so-called wrinkles, are directional isotropic. Wrinkles can be compared to the surface structure of raisins, compressed tissues, or mountain ranges. A possible application for these structures in thin film technology is the use as a periodic random resonator [1] or previously shown by N.M. Hoinka with spiro compounds.
This Poster will present the first results in testing for a proper mate-rial system. So far, experiments with spiro bilayers showed wrinkling over a wide range of surface area. The use of a metallic layer sputtered in a magnetic field can be used to align wrinkles parallel in sucha system.My work concentrates on the conditions causing random lasing in these systems and whether there is any systematic correlation existing between the sample morphology and the spectrum observed. For this purpose, python scripts were written to analyse the shape of the corrugation and their directionality to correlate them with imaged spectra in the future.
[1] Shen, Z. et al., Appl. Phys. Lett. 105, 021106, (2014).
[2] N. M. Hoinka, Doctoral Thesis, 2020.