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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 73: Functional Polymer Hybrids and Composites

CPP 73.1: Vortrag

Donnerstag, 15. März 2018, 15:00–15:15, PC 203

Morphology Control of Low Temperature Fabricated ZnO Nanostructures for All Solid-State Transparent Dye-Sensitized Solar Cells — •Kun Wang¹, Volker Körstgens¹, Dan Yang¹, Nuri Hohn¹, Stephan V. Roth^2,3, and Peter Müller-Buschbaum¹ — ¹1TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching — ²DESY, 22607 Hamburg — ³3KTH, Department of Fibre and Polymer Technology, SE-100 44 Stockholm, Sweden

In the last decade dye-sensitized solar cells (DSSCs) have received considerable interest for solar energy conversion due to their convenient and low-cost fabrication. Solid state DSSCs show great promising since they are generally free from electrolyte leakage and corrosion problems compared with the traditional liquid electrolyte solar cells. For the n-type semiconductor ZnO offers higher electron mobility and lower crystallization temperature as compared to titania. A low-temperature route based on a sol-gel method with diblock copolymer templating is demonstrated, through which ZnO films are prepared which have a tunable morphology including foam-like, worm-like and sphere-like structures. The morphologies are probed using SEM and grazing incidence X-ray scattering. Based on the controlled nanostructured ZnO films all solid-state transparent DSSCs are fabricated, which paves the way for building integration of the solar cells.