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Berlin 2012 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 16: Poster: Colloids and Complex Liquids

CPP 16.2: Poster

Tuesday, March 27, 2012, 18:15–20:45, Poster A

Colloidal Epitaxy on Quasicrystalline Surfaces — •Sharan Devaiah, Thomas Bohlein, and Clemens Bechinger — 2. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany

Colloidal epitaxy is a powerful technique for creating three-dimensional structures useful for applications such as optical filters, switches and photonic materials. During this process, colloidal particles slowly sediment onto a patterned surface which then results in a highly ordered structure. Thus far, this process has only been used to create periodic colloidal crystals. Here, we report on experiments where we attempt to employ this process on templates with quasiperiodic order which are perfectly ordered but not periodic. Our experiments give us simultaneous access to the real space information and the diffraction pattern, thus enabling us to investigate if and how the initial quasiperiodic order of the template proliferates in the vertical direction through the monolayers.

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