Regensburg 2016 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 11: Poster: Hybrid and Perovskite Photovoltaics
CPP 11.4: Poster
Montag, 7. März 2016, 18:15–21:00, Poster B2
Tuning the interface of hybrid thin films for PV applications — •Nuri Hohn1, Lin Song1, Mike Boone2, Eric Rivard2, and Peter Müller-Buschbaum1 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching, Germany — 2University of Alberta, Department of Chemistry, Edmonton, Alberta, Canada
Organic materials have been found to offer various, promising advantages for photovoltaic (PV) devices like flexibility and the potential of low-cost/large scale production. The major challenge to overcome the limited lifetime of such devices can be addressed via the substitution of an organic component with the respective inorganic counterpart for chemical/physical stability. Hence, a conjugated polymer serves as electron donor whereas n-type inorganic nanocrystals are deployed as electron conducting material. In such devices the surface-to-volume ratio is an indicator for both loss factors due to recombination as well as for efficiency gain through an increased amount of interface. Titanium dioxide nanostructures are obtained from sol-gel synthesis coupled with diblock copolymer templating to optimize the structure/interface between the donor and acceptor material. To improve the conditions for an efficient energy conversion in a PV cell primary investigations of the above mentioned systems correspond to spectral as well as morphological characterization via SEM and XRD.