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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Poster Session III

CPP 37.5: Poster

Mittwoch, 3. April 2019, 11:00–13:00, Poster B1

Water-processed active layers for hybrid photovoltaics using spray deposition techniques — •Lautaro Díaz Piola, Volker Körstgens, and Peter Müller-Buschbaum — TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching

Hybrid solar cells aim to combine the advantages of both, inorganic and organic materials in the active layer. The stability and high carrier mobility of the inorganic component, together with the potential low-cost production and feasibility of producing flexible devices from the organic component make the hybrid approach promising. In particular, the possibility for wet chemical device preparation in the organic material allows the use of scalable thin film coating techniques. Most of the research in this direction use organic solvents for the solar cell preparation, which does not lead to a full environmentally friendly approach. Therefore, the use of water soluble components for the organic material is of interest. In the present investigation we study the morphology of active layers for hybrid solar cells that are fully water processed using industrially scalable techniques such as spray coating. The investigation of the mesoscale structure and of the crystal structure is carried out via the scattering techniques GISAXS and GIWAXS, respectively, while UV/vis measurements are performed to study the absorption properties.