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DS: Fachverband Dünne Schichten
DS 35: Poster I: Application of thin films; Focus session: Sensoric micro and nano-systems; Focus Session: Sustainable photovoltaics with earth abundant materials; Graphen (joint session with TT; MA; HL; DY; O); Ion and electron beam induced processes; Layer properties: electrical, optical, and mechanical properties; Magnetic/organic interfaces, spins in organics and molecular magnetism; Micro- and nanopatterning (jointly with O); Organic electronics and photovoltaics (jointly with CPP, HL, O); Thermoelectric materials
DS 35.60: Poster
Wednesday, April 2, 2014, 17:00–20:00, P1
Studying the contacts of organic solar cells — •Tobias Jenne1,2, Felix Schell1,2, Michael Scherer1,3, Robert Lovrincic1,3, and Wolfgang Kowalsky1,2,3 — 1InnovationLab GmbH, Speyerer Str. 4, 69115 Heidelberg, Germany — 2University of Heidelberg, Kirchhoff-Institute for Physics, INF 227, 69120 Heidelberg, Germany — 3TU Braunschweig, Institute for High-Frequency Technology, Schleinitzstr. 22, 38106 Braunschweig, Germany
During the last two decades, the power conversion efficiencies of organic solar cells (OCSs) substantially improved due to new materials and more complex device structures. For further optimization, a deeper understanding of the electric potential within OSCs is necessary. To achieve this, we perform in situ scanning Kelvin probe microscopy (SKPM) [1] measurements in high vacuum on cross sections of OSCs with different active layers and contact materials. These SKPM measurements are accompanied by IV characterization and linked with simulations to gain deeper insights into the fundamentals of complete OSC devices.
[1] Saive et al.: Imaging the Electric Potential within Organic Solar Cells, Adv. Funct. Mater. 2013, DOI: 10.1002/adfm.201301315