Dresden 2014 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Poster Session 2

CPP 37.20: Poster

Mittwoch, 2. April 2014, 15:00–19:00, P3

Porous hybrid materials structured with breath figure templating — •Ali Hassan, Volker Körstgens, and Peter Müller-Buschbaum — TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching

Solution casting and spin-coating of polymer solution in volatile solvents can lead to honeycomb-like porous structures if performed under conditions of high relative humidity due to changed wetting conditions. The surface structures known as breath figures are induced by an array of water droplets condensing on the surface without coalescing. In the last stage of the film forming process the water droplets evaporate and a porous structure remains. In this study polyacrylate based thin films are combined with inorganic nanoparticles to obtain hierarchical structured surfaces. The achieved coatings have the potential as a photon scattering functional layer in photovoltaic devices. The films are characterized with UV/vis spectroscopy and the distribution of pores and nanoparticles in the polymer layers is investigated with optical and scanning electron microscopy.