Dresden 2017 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 59: Plasmonics and Nanooptics

O 59.6: Poster

Dienstag, 21. März 2017, 18:30–20:30, P2-OG1

Far-field characterization of colloidal light management structures for PV — •Lutz Mühlenbein¹, Peter M. Piechulla¹, Alexander Sprafke¹, and Ralf B. Wehrspohn^1,2 — ¹FG Mikrostrukturbasiertes Materialdesign, MLU Halle-Wittenberg — ²Fraunhofer IMWS, Halle

Light management strategies are object of extensive research in the field of thin film photovoltaics, with the primary goal of increasing the short circuit current J_SC of PV cells. However, while J_SC is the figure of merit in the final device, in order to optimize light management structures, we are interested in the more fundamental optical properties, e.g. angular and wavelength resolved scattering. Using conventional fabrication technologies, controlling those properties is either expensive (for example by photolithography) or severly limited (random etching processes). In contrast, layers of self-organized colloidal particles can be produced on a large scale at low cost and allow for a wide range of scattering properties. In the presented work, we are focussing on appropriate and practicable characterization techniques in order to link the optical response to the microstructure of these colloidal layers.