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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 30: P2: Organic Electronics and Photovoltaics

CPP 30.11: Poster

Dienstag, 17. März 2015, 14:00–16:00, Poster B

Performance P3HT:PCBM solar cells modified with iron oxide nanoparticles — •Daniel Moseguí González¹, Volker Körstgens¹, Yuan Yao¹, Lin Song¹, Gonzalo Santoro², Stephan Roth², and Peter Müller-Buschbaum¹ — ¹TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748, Garching — ²Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg

Among the different systems studied in organic solar cells, the combination of P3HT:PCBM has received the highest attention due to easy commercial availability. However, regarding further boost in efficiencies, doping with heavy metals has shown interesting behavior. The presence of heavy metals increases the L-S coupling in the system, increasing the rate of intersystem crossing, and thereby lowering the averaged recombination rate. The aim of the present investigation is to characterize through which channels the presence of iron oxide nanoparticles affects the performance of P3HT:PCBM based solar cells. The morphology evolution is tracked with advanced scattering techniques. Spectral behavior and electrical response of devices are also investigated, providing altogether a detailed picture of doped systems.