Dresden 2009 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 26: Poster II

DS 26.10: Poster

Mittwoch, 25. März 2009, 09:30–12:30, P5

Preparation of dye-sensitised ZnO on textile electrodes by pulsed electrodeposition from nitrate-based aqueous solutions — •Melanie Rudolph1, Thomas Loewenstein1, Yvonne Zimmermann2, Andreas Neudeck2, and Derck Schlettwein11Justus-Liebig-Universität Gießen, Institut für Angewandte Physik, Heinrich-Buff-Ring 16, 35392, Gießen, Germany. E-mail: schlettwein@uni-giessen.de; Fax: +49 641 9933409; Tel: +49 641 9933400 — 2Textilforschungsinstitut Thüringen-Vogtland e.V., Zeulenrodaer Straße 42, 07973, Greiz, Germany. E-mail: y.zimmermann@titv-greiz.de; Tel: +49 3661 611382

Metallized textile filaments were coated with ZnO/eosinY hybrid thin films by pulsed electrodeposition from aqueous mixed solutions containing zinc nitrate and eosinY. The applied potential, the pulse length and the time between two pulses were varied systematically to control the conditions of mass flow and to suppress parasitic currents. The current-time behaviour was analysed as a direct monitor of electrodeposition. The films were characterised in their structure and morphology by means of confocal laser microscopy, scanning electron microscopy and X-ray diffraction. Homogeneous and crystalline films with nanoporous structure were obtained. The variation of the pulse parameters allowed to modify the film morphology. Photoelectrochemical measurements revealed that the deposited films worked as photoelectrodes in dye-sensitised solar cells and their technical applicability as part of an energy supply of textile microelectronic systems was discussed.

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