Berlin 2012 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 13: Poster: Interfaces and Thin Films
CPP 13.6: Poster
Dienstag, 27. März 2012, 18:15–20:45, Poster A
Electrodeposition of porous ZnO in the presence of sodium dodecylbenzene sulfonate (NaDBS) as structure-directing agent — •Magnus Schäfer, Max Beu, and Derck Schlettwein — Justus-Liebig-Universität Gießen, Institut für Angewandte Physik, Heinrich-Buff-Ring 16, D-35392 Gießen
ZnO was electrodeposited on fluorine-doped tin oxide (FTO) on glass using an aqueous ZnCl2-solution as electrolyte, heated up to 70∘C. A constant voltage of −1060 mV vs. a Ag/AgCl reference electrode was used for the deposition. To form a porous ZnO-layer, sodium dodecylbenzene sulfonate (NaDBS) was added as structure-directing agent to the electrolyte. After the deposition the NaDBS was desorbed from the ZnO electrodes. The influence of NaDBS on the porous structure and on the morphology of ZnO was studied. The subsequent adsorption of organic dyes as sensitizers to the porous zinc oxide layers and their characteristics in dye-sensitized solar cells was tested to analyze the suitability of the porous ZnO matrix as electrode material.