Regensburg 2016 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 11: Poster: Hybrid and Perovskite Photovoltaics

CPP 11.3: Poster

Montag, 7. März 2016, 18:15–21:00, Poster B2

Nanostructured zinc oxide films for application in hybrid photovoltaics — •Kun Wang, Lin Song, and Peter Müller-Buschbaum — Physikdepartment E13 Lehrstuhl für Funktionelle Materialien Technische Universität München, James-Franck-Straße 1, München, Germany

Hybrid solar cells, a combination of conventional inorganic photovoltaic systems and organic solar cell technologies, offer outstanding potential due to their minor investment compared to inorganic solar cells and higher stability compared to organic solar cells. In this kind of cells, nanostructured inorganic metal oxides with tunable morphologies are of great importance. Among the many inorganic metal oxides, ZnO has been widely explored due to its outstanding electrical and optical properties and rich variety of morphologies. In order to improve the interfaces between ZnO and hole-conducting polymers, routes to tune the length scales of the nanostructures are explored. We use SEM and AFM to investigate the surface morphology of ZnO, while the nanostructure inside the films can be probed with GISAXS. The understanding of the film morphology is helpful for improving the power conversion efficiency. The optical properties are examined with UV/Vis spectroscopy and the film thickness is investigated by x-ray reflectivity measurements.