Hannover 2003 – wissenschaftliches Programm
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SYPK: Photonische Kristalle
SYPK II: HV II
SYPK II.1: Hauptvortrag
Donnerstag, 27. März 2003, 12:00–12:30, F 303
Photonic Crystals from Polymer Colloids — •R. Zentel1, M. Egen1, B. Griesebock1, R. Voss1, M. Müller1, P. Ferrand2, S. G. Romanov2, and C. M. Sotomayor Torres2 — 1Institute for Organic Chemistry, Department of Chemistry , University of Mainz, Duesbergerweg 10 - 14, D - 55099 Mainz, Germany, zentel@mail.uni-mainz.de — 2Electrical Engineering, University of Wuppertal, Gaussstrasse 20, D - 42097 Wuppertal, Germany
The crystallisation of monodisperse colloids into “dried” colloidal crystals (“polymer” opals) offers an easy access to three dimensional Photonic Crystals. These polymer opals do not yet show a full band gap due to limitations in the refractive index. They are, however, highly flexible with regard to properties and processing (e.g. E-beam writing and filling of narrow channels). In addition they can be easily converted into replica from inorganics with a high refractive index. The chemistry within and outside the colloids has strong influences on the physical properties of the final Photonic Crystal film. Therefore we synthesise and crystallise highly monodisperse colloids with diameters from 180 nm to 2,300 nm with a large variety of polymer chemistry. Properties like temperature stability, refractive index contrast, size, solvent stability and nevertheless the ability for further chemistry within the Photonic Crystal can be tuned via chemistry.