Dresden 2014 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 7: Organic electronics and photovoltaics I (organized by CPP)
HL 7.3: Talk
Monday, March 31, 2014, 10:15–10:30, ZEU 222
Spray deposition of zinc oxide nanostructured films for applications in dye-sensitized solar cells — •Kuhu Sarkar1, Erik V. Braden1, Stefan Pogorzalek1, Shun Yu2, Stephan V. Roth2, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching — 2DESY, Notkestr. 85, 22607 Hamburg
Zinc oxide (ZnO) has emerged as a suitable alternative to titania (TiO2) in the recent years in the field of dye-sensitized solar cells (DSSCs). The inorganic metal oxide films for DSSCs are highly desirable to have an increased surface for enhanced adsorption of a photosensitizer. Hence, nanostructured films of ZnO are synthesized from a solution based approach. Different deposition techniques are investigated to have a significant film thickness for a considerable amount of light absorption. In this respect, spray deposition is shown to be a highly efficient and scalable technique to produce films matching the above-mentioned criteria. Surface as well as bulk morphology of the films have been studied using SEM and GISAXS. These ZnO films are successfully shown to provide good performance in a dye-sensitized solar cell with the highest short circuit current density reported so far.